Tag Archives: fortimail

Installing Firmware

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Installing firmware

Fortinet periodically releases FortiMail firmware updates to include enhancements and address issues. After you have registered your FortiMail unit, FortiMail firmware is available for download at http://support.fortinet.com.

Installing new firmware can overwrite antivirus and antispam packages using the versions of the packages that were current at the time that the firmware image was built. To avoid repeat updates, update the firmware before updating your FortiGuard packages.

New firmware can also introduce new features which you must configure for the first time.

For information specific to the firmware release version, see the Release Notes available with that release.

In addition to major releases that contain new features, Fortinet releases patch releases that resolve specific issues without containing new features and/or changes to existing features. It is recommended to download and install patch releases as soon as they are available.

Before you can download firmware updates for your FortiMail unit, you must first register your FortiMail unit with Fortinet Technical Support. For details, go to http://support.fortinet.com/ or contact Fortinet Technical Support.

This section includes:

  • Testing firmware before installing it
  • Installing firmware
  • Clean installing firmware

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Logs, Reports, and Alerts

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Logs, reports and alerts

The Log and Report menu lets you configure logging, reports, and alert email.

FortiMail units provide extensive logging capabilities for virus incidents, spam incidents and system events. Detailed log information and reports provide analysis of network activity to help you identify security issues and reduce network misuse and abuse.

Logs are useful when diagnosing problems or when you want to track actions the FortiMail unit performs as it receives and processes traffic.

This section includes:

  • About FortiMail logging
  • Configuring logging
  • Configuring report profiles and generating reports
  • Configuring alert email
  • Viewing log messages
  • Viewing generated reports

About FortiMail logging

FortiMail units can log many different email activities and traffic including:

  • system-related events, such as system restarts and HA activity
  • virus detections
  • spam filtering results
  • POP3, SMTP, IMAP and webmail events

You can select which severity level an activity or event must meet in order to be recorded in the logs. For more information, see “Log message severity levels” on page 668.

A FortiMail unit can save log messages to its hard disk or a remote location, such as a Syslog server or a Fortinet FortiAnalyzer unit. For more information, see “Configuring logging” on page 671. It can also use log messages as the basis for reports. For more information, see “Configuring report profiles and generating reports” on page 676.

Accessing FortiMail log messages

There are several ways you can access FortiMail log messages:

  • On the FortiMail web UI, you can view log messages by going to Monitor > Log. For details, see the FortiMail Administration Guide.
  • On the FortiMail web UI, under Monitor > Log, you can download log messages to your local PC and view them later.
  • You can send log messages to a FortiAnalyzer unit by going to Log and Report > Log Settings > Remote Log Settings and view them on FortiAnalyzer.
  • You can send log messages to any Syslog server by going to Log and Report > Log Settings > Remote Log Settings.

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Archiving Email

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Archiving email

You can archive email messages according to various criteria and reasons. For example, you may want to archive email sent by certain senders or email contains certain words.

This section contains the following topics:

  • Email archiving workflow
  • Configuring email archiving accounts
  • Configuring email archiving policies
  • Configuring email archiving exemptions

Email archiving workflow

To use the email archiving feature, you must do the following:

  1. Create email archive accounts to send archived email to. See “Configuring email archiving accounts” on page 656.

Starting from version 4.2, you can create multiple archive accounts and send different categories of email to different accounts. For the maximum number of archive accounts you can create, see “Appendix B: Maximum Values Matrix” on page 726.

  1. Create email archive policies or exemption policies to specify the archiving criteria. See “Configuring email archiving policies” on page 660 and “Configuring email archiving exemptions” on page 662. Or, when creating antispam action profiles and content action profiles, choose to archive email as one of the actions. See “Configuring antispam profiles and antispam action profiles” on page 503 and “Configuring content profiles and content action profiles” on page 526.
  2. Assign the administrator account access privilege to the email archive. See “Configuring administrator accounts and access profiles” on page 289.
  3. You can search or view the archived email as the FortiMail administrator. See “Managing archived email” on page 203. You can also access email archives remotely through IMAP. See “Configuring email archiving accounts” on page 656.

Configuring email archiving accounts

Before you can archive email, you need to set up and enable email archiving accounts, as described below. The archived emails will be stored in the archiving accounts. You can create multiple archive accounts and send different categories of email to different accounts. For the maximum number of archive accounts you can create, see “Appendix B: Maximum Values Matrix” on page 726.

When email is archived, you can view and manage the archived email messages. For more information, see “Managing archived email” on page 203. You can also access the email archive remotely through IMAP.

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

Page 656

To enable and configure an email archive account

  1. Go to Email Archiving > Archive Accounts > Archive Accounts.

Figure 293:Managing email archive accounts

GUI item Description
Status Select to enable an email archiving account. Clear the check box to disable it.
Account Lists email archive accounts.
Index Type Indicates if archive indexing is in use and how much is indexed. Indexing speeds up content searches. The choices are:

•      None: email is not indexed.

•      Header: email headers are indexed.

•      Full: the entire message is indexed.
Storage Indicates the type of archive storage: Local or Remote.
(Green dot in column heading) Indicates whether the archive is currently referred to by an archive policy. If so, a red dot appears in this column and the entry cannot be deleted.
  1. Click New to create an account or double-click an account to modify it.

A multisection dialog appears.

Figure 294:Configuring email archive accounts

  1. Configure the following sections, and click Create.
    • “Configuring account settings”
    • “Configuring rotation settings”
    • “Configuring destination settings”

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Configuring Policies

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Configuring policies

The Policy menu lets you create policies that use profiles to filter email.

It also lets you control who can send email through the FortiMail unit, and stipulate rules for how it will deliver email that it proxies or relays.

                                 •    What is a policy?

  • How to use policies
  • Controlling SMTP access and delivery
  • Controlling email based on recipient addresses
  • Controlling email based on IP addresses

What is a policy?

A policy defines which way traffic will be filtered. It may also define user account settings, such as authentication type, disk quota, and access to webmail.

After creating the antispam, antivirus, content, authentication, TLS, or resource profiles (see “Configuring profiles” on page 482), you need to apply them to policies for them to take effect.

FortiMail units support three types of policies:

  • Access control and delivery rules that are typical to SMTP relays and servers (see

“Controlling SMTP access and delivery” on page 456)

  • Recipient-based policies (see “Controlling email based on recipient addresses” on page 468)
  • IP-based policies (see “Controlling email based on IP addresses” on page 475)

Recipient-based policies versus IP-based policies

  • Recipient-based policies

The FortiMail unit applies these based on the recipient’s email address or the recipient’s user group. May also define authenticated webmail or POP3 access by that email user to their per-recipient quarantine. Since version 4.0, the recipient-based policies also check sender patterns.

  • IP-based policies

The FortiMail unit applies these based on the SMTP client’s IP address (server mode or gateway mode), or the IP addresses of both the SMTP client and SMTP server (transparent mode).

Page 453

Incoming versus outgoing email messages

There are two types of recipient-based policies: incoming and outgoing. The FortiMail unit applies incoming policies to the incoming mail messages and outgoing policies to the outgoing mail messages.

Whether the email is incoming or outgoing is decided by the domain name in the recipient’s email address. If the domain is a protected domain, the FortiMail unit considers the message to be incoming and applies the first matching incoming recipient-based policy. If the recipient domain is not a protected domain, the message is considered to be outgoing, and applies outgoing recipient-based policy.

To be more specific, the FortiMail unit actually matches the recipient domain’s IP address with the IP list of the protected SMTP servers where the protected domains reside. If there is an IP match, the domain is deemed protected and the email destined to this domain is considered to be incoming. If there is no IP match, the domain is deemed unprotected and the email destined to this domain is considered to be outgoing.

For more information on protected domains, see “Configuring protected domains” on page 380.


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Configuring Mail Settings

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Configuring mail settings

The Mail Settings menu lets you configure the basic email settings of the FortiMail unit (such as the port number of the FortiMail SMTP relay/proxy/server), plus how to handle connections and how to manage the mail queues.

This section includes:

  • Configuring the built-in MTA and mail server
  • Configuring protected domains
  • Managing the address book (server mode only)
  • Sharing calendars and address books (server mode only)
  • Migrating email from other mail servers (server mode only)
  • Configuring proxies (transparent mode only)

Configuring the built-in MTA and mail server

Go to Mail Settings > Settings to configure assorted settings that apply to the SMTP server and webmail server that are built into the FortiMail unit.

This section includes:

  • Configuring mail server settings
  • Configuring global disclaimers
  • Configuring disclaimer exclusion list
  • Selecting the mail data storage location

Configuring mail server settings

Use the mail server settings to configure SMTP server/relay settings of the System domain, which is located on the local host (that is, your FortiMail unit).

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

To configure local SMTP server settings

  1. Go to Mail Settings > Settings > Mail Server Settings.

A multisection page appears.

Page 366

Figure 153:Mail Server Settings tab

  1. Configure the following sections as needed:
  • “Configuring local host settings” on page 368
  • “Configuring SMTP relay hosts” on page 373
  • “Configuring deferred message delivery” on page 371
  • “Configuring DSN options” on page 369
  • “Configuring mail queue setting” on page 370
  • “Configuring domain check options” on page 372

Configuring local host settings

Provide the name and SMTP information for the mail server.

GUI item Description
Host name Enter the host name of the FortiMail unit.

Displays the FortiMail unit’s fully qualified domain name (FQDN) is in the format:

<host-name>.<local-domain-name>

such as fortimail-400.example.com, where fortimail-400 is the Host name and example.com is the Local domain name.

Note: The FQDN of the FortiMail unit should be different from that of protected SMTP servers. If the FortiMail unit uses the same FQDN as your mail server, it may become difficult to distinguish the two devices during troubleshooting.

Note: You should use a different host name for each FortiMail unit, especially when you are managing multiple FortiMail units of the same model, or when configuring a high availability (HA) cluster. This will let you to distinguish between different members of the cluster. If the FortiMail unit is in HA mode, the FortiMail unit will add the host name to the subject line of alert email messages. For details, see “Configuring alert email” on page 682.
Local domain name Enter the local domain name to which the FortiMail unit belongs.

The local domain name is used in many features such as email quarantine, Bayesian database training, quarantine report, and delivery status notification (DSN) email messages.

Displays the FortiMail unit’s fully qualified domain name (FQDN) is in the format:

<host-name>.<local-domain-name>

such as fortimail-400.example.com, where fortimail-400 is the Host name and example.com is the Local domain name.

Note: The IP address should be globally resolvable into the FQDN of the FortiMail unit if it will relay outgoing email. If it is not globally resolvable, reverse DNS lookups of the FortiMail unit’s domain name by external SMTP servers will fail. For quarantine reports, if the FortiMail unit is operating in server mode or gateway mode, DNS records for the local domain name may need to be globally resolvable to the IP address of the FortiMail unit. If it is not globally resolvable, web and email release/delete for the per-recipient quarantines may fail. For more information on configuring required DNS records, see “Setting up the system” on page 25.

Note: The Local domain name is not required to be different from or identical to any protected domain. It can be a subdomain or different, external domain.

For example, a FortiMail unit whose FQDN is fortimail.example.com could be configured with the protected domains example.com and accounting.example.net.
SMTP server port number Enter the port number on which the FortiMail unit’s SMTP server will listen for SMTP connections. The default port number is 25.
GUI item Description
SMTP over SSL/TLS Enable to allow SSL- and TLS-secured connections from SMTP clients that request SSL/TLS.

When disabled, SMTP connections with the FortiMail unit’s built-in MTA must occur as clear text, unencrypted.

Note: This option must be enabled to receive SMTPS connections. However, it does not require them. To enforce client use of SMTPS, see “Configuring access control rules” on page 456.
SMTPS server port number Enter the port number on which the FortiMail unit’s built-in MTA listens for secure SMTP connections. The default port number is 465.

This option is unavailable if SMTP over SSL/TLS is disabled.
SMTP MSA

service

 Enable let your email clients use SMTP for message submission on a separate TCP port number from deliveries or mail relay by MTAs.

For details on message submission by email clients as distinct from SMTP used by MTAs, see RFC 2476.
SMTP MSA port number Enter the TCP port number on which the FortiMail unit listens for email clients to submit email for delivery. The default port number is 587.
POP3 server port number Enter the port number on which the FortiMail unit’s POP3 server will listen for POP3 connections. The default port number is 110.

This option is available only if the FortiMail unit is operating in server mode.
Default domain for

authentication

 If you set one domain as the default domain, users on the default domain only need to enter their user names without the domain part for webmail/SMTP/IMAP/POP3 authentication, such as user1. Users on the non-default domains must enter both the user name part and domain part to authentication, such as user2@example.com.

Webmail access Enable to redirect HTTP webmail access to HTTPS.

Configuring DSN options

Use this section to configure mail server delivery status notifications.

For information on failed deliveries, see “Managing the deferred mail queue” on page 179 and “Managing undeliverable mail” on page 181.

For more information on DSN, see “Managing the deferred mail queue” on page 179.

GUI item Description
DSN (NDR) email generation Enable to allow the FortiMail unit to send DSN messages to notify email users of delivery delays and/or failure.
GUI item Description
Sender displayname Displays the name of the sender, such as FortiMail administrator, as it should appear in DSN email.

If this field is empty, the FortiMail unit uses the default name of postmaster.

Sender address Displays the sender email address in DSN.

If this field is empty, the FortiMail unit uses the default sender email address of postmaster@<domain_str>, where <domain_str> is the domain name of the FortiMail unit, such as example.com.


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Managing Certificates

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Managing certificates

This section explains how to manage X.509 security certificates using the FortiMail web UI. Using the Certificate submenu, you can generate certificate requests, install signed certificates, import CA root certificates and certificate revocation lists, and back up and restore installed certificates and private keys.

FortiMail uses certificates for PKI authentication in secure connections. PKI authentication is the process of determining if a remote host can be trusted with access to network resources. To establish its trustworthiness, the remote host must provide an acceptable authentication certificate by obtaining a certificate from a certification authority (CA).

You can manage the following types of certificates on FortiMail:

Table 44:Certificate types

Certificate type Usage
CA certificates FortiMail uses CA certificates to authenticate the PKI users, including administrators and web mail users. For details, see “Configuring PKI authentication” on page 435 and “Managing certificate authority certificates” on page 354.
Server certificates FortiMail must present its local server certificate for the following secure connections:

•      the web UI (HTTPS connections only)

•      webmail (HTTPS connections only)

•      secure email, such as SMTPS, IMAPS, and POP3S

For details, see “Managing local certificates” on page 347.
Personal certificates Mail users’ personal certificates are used for S/MIME encryption. For details, see “Configuring certificate bindings” on page 362.

This section contains the following topics:

  • Managing local certificates
  • Managing certificate authority certificates
  • Managing the certificate revocation list
  • Managing OCSP server certificates

Managing local certificates

System > Certificate > Local Certificate displays both the signed server certificates and unsigned certificate requests.

On this tab, you can also generate certificate signing requests and import signed certificates in order to install them for local use by the FortiMail unit.

FortiMail units require a local server certificate that it can present when clients request secure connections, including:

  • the web UI (HTTPS connections only)
  • webmail (HTTPS connections only)
  • secure email, such as SMTPS, IMAPS, and POP3S

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

To view local certificates

  1. Go to System > Certificate > Local Certificate.

Figure 139:Local Certificate tab

GUI item Description
Delete

(button)

 Removes the selected certificate.
View

(button)

 Select a certificate and click View to display its issuer, subject, and range of dates within which the certificate is valid.
Generate (button) Click to generate a local certificate request. For more information, see “Generating a certificate signing request” on page 348.
Download

(button)

 Click the row of a certificate file or certificate request file in order to select it, then click this button and select either:

•      Download: Download a certificate (.cer) or certificate request (.csr) file. You can send the request to your certificate authority (CA) to obtain a signed certificate for the FortiMail unit. For more information, see “Downloading a certificate signing request” on page 351.

•      Download PKCS12 File: Download a PKCS #12 (.p12) file. For details, see

“Downloading a PKCS #12 certificate” on page 354.
GUI item Description
Set status Click the row of a certificate in order to select it, then click this button to use it as the “default” (that is, currently chosen for use) certificate. The Status column changes to indicate that the certificate is the current (Default) certificate.

This button is not available if the selected certificate is already the “default.”
Import

(button)

 Click to import a signed certificate for local use. For more information, see “Importing a certificate” on page 352.
Name Displays the name of the certificate file or certificate request file.
Subject Displays the Distinguished Name (DN) located in the Subject field of the certificate.

If the certificate has not yet been signed, this field is empty.
Status Displays the status of the local certificates or certificate signing request.

•      Default: Indicates that the certificate was successfully imported, and is currently selected for use by the FortiMail unit.

•      OK: Indicates that the certificate was successfully imported, but is not selected as the certificate currently in use. To use the certificate, click the row of the certificate in order to select it, then click Set status.

•      Pending: Indicates that the certificate request has been generated, but must be downloaded, signed, and imported before it can be used as a local certificate. For details, see “Obtaining and installing a local certificate” on page 348.

Obtaining and installing a local certificate

There are two methods to obtain and install a local certificate:

  • If you already have a signed server certificate (a backup certificate, a certificate exported from other devices, and so on), you can import the certificate into FortiMail. For details, see “Importing a certificate” on page 352.
  • Generate a certificate signing request on the FortiMail unit, get the request signed by a CA ,and import the signed certificate into FortiMail.

For the second method, follow these steps:

  • Generating a certificate signing request
  • Downloading a certificate signing request
  • Submitting a certificate request to your CA for signing
  • Importing a certificate

Generating a certificate signing request

You can generate a certificate request file, based on the information you enter to identify the FortiMail unit. Certificate request files can then be submitted for verification and signing by a certificate authority (CA).

For other related steps, see “Obtaining and installing a local certificate” on page 348.

To generate a certificate request

  1. Go to System > Certificate > Local Certificate.
  2. Click Generate.

A dialog appears.

  1. Configure the following:

Figure 140:Generate Certificate Signing Request dialog

GUI item Description
Certification name Enter a unique name for the certificate request, such as fmlocal.
Subject Information Information that the certificate is required to contain in order to uniquely identify the FortiMail unit.

 

GUI item Description
ID type Select which type of identifier will be used in the certificate to identify the FortiMail unit:

•      Host IP

•      Domain name

•      E-mail

Which type you should select varies by whether or not your FortiMail unit has a static IP address, a fully-qualified domain name (FQDN), and by the primary intended use of the certificate.

For example, if your FortiMail unit has both a static IP address and a domain name, but you will primarily use the local certificate for HTTPS connections to the web UI by the domain name of the FortiMail unit, you might prefer to generate a certificate based on the domain name of the FortiMail unit, rather than its IP address.

•      Host IP requires that the FortiMail unit have a static, public IP address. It may be preferable if clients will be accessing the FortiMail unit primarily by its IP address.

•      Domain name requires that the FortiMail unit have a fully-qualified domain name (FQDN). It may be preferable if clients will be accessing the FortiMail unit primarily by its domain name.

•      E-mail does not require either a static IP address or a domain name. It may be preferable if the FortiMail unit does not have a domain name or public IP address.
IP Enter the static IP address of the FortiMail unit.

This option appears only if ID Type is Host IP.
Domain name Type the fully-qualified domain name (FQDN) of the FortiMail unit.

The domain name may resolve to either a static or, if the FortiMail unit is configured to use a dynamic DNS service, a dynamic IP address. For more information, see “Configuring the network interfaces” on page 247 and “Configuring dynamic DNS” on page 259.

If a domain name is not available and the FortiMail unit subscribes to a dynamic DNS service, an unable to verify certificate message may appear in the user’s browser whenever the public IP address of the FortiMail unit changes.

This option appears only if ID Type is Domain name.
E-mail Type the email address of the owner of the FortiMail unit.

This option appears only if ID type is E-mail.
Optional Information Information that you may include in the certificate, but which is not required.
GUI item Description
Organization unit Type the name of your organizational unit, such as the name of your department. (Optional.)

To enter more than one organizational unit name, click the + icon, and enter each organizational unit separately in each field.
Organization Type the legal name of your organization. (Optional.)
Locality(City) Type the name of the city or town where the FortiMail unit is located. (Optional.)
State/Province Type the name of the state or province where the FortiMail unit is located. (Optional.)
Country Select the name of the country where the FortiMail unit is located. (Optional.)
E-mail Type an email address that may be used for contact purposes. (Optional.)
Key type Displays the type of algorithm used to generate the key.

This option cannot be changed, but appears in order to indicate that only RSA is currently supported.
Key size Select a security key size of 1024 Bit, 1536 Bit or 2048 Bit.

Larger keys are slower to generate, but provide better security.
  1. Click OK.

The certificate is generated, and can be downloaded to your management computer for submission to a certificate authority (CA) for signing. For more information, see “Downloading a certificate signing request” on page 351.

Downloading a certificate signing request

After you have generated a certificate request, you can download the request file to your management computer in order to submit the request file to a certificate authority (CA) for signing.

For other related steps, see “Obtaining and installing a local certificate” on page 348.

To download a certificate request

  1. Go to System > Certificate > Local Certificate.
  2. Click the row that corresponds to the certificate request in order to select it.
  3. Click Download, then select Download from the pop-up menu.

Your web browser downloads the certificate request (.csr) file.

Submitting a certificate request to your CA for signing

After you have download the certificate request file, you can submit the request to you CA for signing.

For other related steps, see “Obtaining and installing a local certificate” on page 348.

To submit a certificate request

  1. Using the web browser on the management computer, browse to the web site for your CA.
  2. Follow your CA’s instructions to place a Base64-encoded PKCS #12 certificate request, uploading your certificate request.
  3. Follow your CA’s instructions to download their root certificate and Certificate Revocation List (CRL), and then install the root certificate and CRL on each remote client.
  4. When you receive the signed certificate from the CA, install the certificate on the FortiMail unit. For more information, see “Importing a certificate” on page 352.

Importing a certificate

You can upload Base64-encoded certificates in either privacy-enhanced email (PEM) or public key cryptography standard #12 (PKCS #12) format from your management computer to the FortiMail unit.

  • restoring a certificate backup
  • installing a certificate that has been generated on another system
  • installing a certificate, after the certificate request has been generated on the FortiMail unit and signed by a certificate authority (CA)

If you generated the certificate request using the FortiMail unit, after you submit the certificate request to CA, the CA will verify the information and register the contact information in a digital certificate that contains a serial number, an expiration date, and the public key of the CA. The CA will then sign the certificate and return it to you for installation on the FortiMail unit. To install the certificate, you must import it. For other related steps, see “Obtaining and installing a local certificate” on page 348.

If the FortiMail unit’s local certificate is signed by an intermediate CA rather than a root CA, before clients will trust the FortiMail unit’s local certificate, you must demonstrate a link with trusted root CAs, thereby proving that the FortiMail unit’s certificate is genuine. You can demonstrate this chain of trust either by:

  • installing each intermediate CA’s certificate in the client’s list of trusted CAs
  • including a signing chain in the FortiMail unit’s local certificate

To include a signing chain, before importing the local certificate to the FortiMail unit, first open the FortiMail unit’s local certificate file in a plain text editor, append the certificate of each intermediate CA in order from the intermediate CA who signed the FortiMail unit’s certificate to the intermediate CA whose certificate was signed directly by a trusted root CA, then save the certificate. For example, a local certificate which includes a signing chain might use the following structure:

—–BEGIN CERTIFICATE—-<FortiMail unit’s local server certificate>

—–END CERTIFICATE—–

—–BEGIN CERTIFICATE—–

<certificate of intermediate CA 1, who signed the FortiMail certificate>

—–END CERTIFICATE—–

—–BEGIN CERTIFICATE—–

<certificate of intermediate CA 2, who signed the certificate of intermediate CA 1 and whose certificate was signed by a trusted

root CA>

—–END CERTIFICATE—–

To import a local certificate

  1. Go to System > Certificate > Local Certificate.
  2. Click Import.
  3. From Type, select the type of the import file or files:
    • Local Certificate: Select this option if you are importing a signed certificate issued by your CA. For other related steps, see “Obtaining and installing a local certificate” on page 348.
    • PKCS12 Certificate: Select this option if you are importing an existing certificate whose certificate file and private key are stored in a PKCS #12 (.p12) password-encrypted file.
    • Certificate: Select this option if you are importing an existing certificate whose certificate file (.cert) and key file (.key) are stored separately. The private key is password-encrypted.

The remaining fields vary by your selection in Type.

Figure 141:Uploading a local certificate

Figure 142:Uploading a PKCS12 certificate)

Figure 143:Uploading a certificate

  1. Configure the following:
GUI item Description
Certificate file Enter the location of the previously .cert or .pem exported certificate (or, for PKCS #12 certificates, the .p12 certificate-and-key file), or click Browse to locate the file.
Key file Enter the location of the previously exported key file, or click Browse to locate the file.

This option appears only when Type is Certificate.
Password Enter the password that was used to encrypt the file, enabling the FortiMail unit to decrypt and install the certificate.

This option appears only when Type is PKCS12 certificate or Certificate.

Downloading a PKCS #12 certificate

You can export certificates from the FortiMail unit to a PKCS #12 file for secure download and import to another platform, or for backup purposes.

To download a PKCS #12 file

  1. Go to System > Certificate > Local Certificate.
  2. Click the row that corresponds to the certificate in order to select it.
  3. Click Download, then select Download PKCS12 File on the pop-up menu.

A dialog appears.

  1. In Password and Confirm password, enter the password that will be used to encrypt the exported certificate file. The password must be at least four characters long.
  2. Click Download.
  3. If your browser prompts you for a location to save the file, select a location.

Your web browser downloads the PKCS #12 (.p12) file. For information on importing a PKCS #12 file, see “Importing a certificate” on page 352.

Managing certificate authority certificates

Go to System > Certificates > CA Certificate to view and import certificates for certificate authorities (CA).

Certificate authorities validate and sign other certificates in order to indicate to third parties that those other certificates may be trusted to be authentic.

CA certificates are required by connections that use transport layer security (TLS), and by S/MIME encryption. For more information, see “Configuring TLS security profiles” on page 591 and “Configuring certificate bindings” on page 362. Depending on the configuration of each PKI user, CA certificates may also be required to authenticate PKI users. For more information, see “Configuring PKI authentication” on page 435.

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category For details, see “About administrator account permissions and domains” on page 290.

To view a the list of CA certificates, go to System > Certificate > CA Certificate.

Figure 144:CA Certificate tab

Table 45:Managing CA certificates

GUI item Description
Delete

(button)

 Removes the selected certificate.
View

(button)

 Select a certificate and click View to display certificate details including the certificate name, issuer, subject, and the range of dates within which the certificate is valid.
Download

(button)

 Click the row of a certificate in order to select it, then click Download to download a copy of the CA certificate (.cer).
Import

(button)

 Click to import a CA certificate.
Name Displays the name of the CA certificate.
Subject Displays the Distinguished Name (DN) located in the Subject field of the certificate.

Managing the certificate revocation list

The Certificate Revocation List tab lets you view and import certificate revocation lists.

To ensure that your FortiMail unit validates only valid (not revoked) certificates, you should periodically upload a current certificate revocation list, which may be provided by certificate authorities (CA). Alternatively, you can use online certificate status protocol (OCSP) to query for certificate statuses. For more information, see “Managing OCSP server certificates” on page 356.

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

To view remote certificates, go to System > Certificate > Certificate Revocation List.

Figure 145:Certificate Revocation List tab

Table 46:Managing certificate revocation lists

GUI item Description
Delete

(button)

 Removes the selected list.
View

(button)

 Select a certificate revocation list and click View to display details.
Download

(button)

 Select a certificate revocation list and click Download to download a copy of the CRL file (.cer).
Import

(button)

 Click to import a certificate revocation list.
Name Displays the name of the certificate revocation list.
Subject Displays the Distinguished Name (DN) located in the Subject field of the certificate revocation list.

Managing OCSP server certificates

Go to System > Certificate > Remote to view and import the certificates of the online certificate status protocol (OCSP) servers of your certificate authority (CA).

OCSP lets you revoke or validate certificates by query, rather than by importing certificate revocation lists (CRL). For information about importing CRLs, see “Managing the certificate revocation list” on page 355.

Remote certificates are required if you enable OCSP for PKI users. For more information, see “Configuring PKI authentication” on page 435.

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category For details, see “About administrator account permissions and domains” on page 290.

To view a the list of remote certificates, go to System > Certificate > Remote.

Figure 146:Remote tab

Table 47:Managing OCSP server certificates

GUI item Description
Delete

(button)

 Removes the selected certificate.
View

(button)

 Select a certificate and click View to display certificate details including the certificate name, issuer, subject, and the range of dates within which the certificate is valid.

Table 47:Managing OCSP server certificates

Download

(button)

 Click the row of a certificate in order to select it, then click

Download to download a copy of the OCSP server certificate (.cer).
Import

(button)

 Click to import an OCSP server certificate.
Name Displays the name of the OCSP server certificate.
Subject Displays the Distinguished Name (DN) located in the Subject field of the certificate.

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Configuring RAID

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Configuring RAID

Go to System > RAID to configure a redundant array of independent disks (RAID) for the FortiMail hard disks that are used to store logs and email.

Most FortiMail models can be configured to use RAID with their hard disks. The default RAID level should give good results, but you can modify the configuration to suit your individual requirements for enhanced performance and reliability. For more information, see “Configuring RAID for FortiMail 400B/400C/5002B models” on page 299 or “Configuring RAID on FortiMail 1000D/2000A/2000B/3000C/3000D/4000A models” on page 301.

You can configure the RAID levels for the local disk partitions used for storing email files or log files (in the case of FortiMail-400/400B/400C), depending on your requirements for performance, resiliency, and cost.

RAID events can be logged and reported with alert email. These events include disk full and disk failure notices. For more information, see “About FortiMail logging” on page 665, and “Configuring alert email” on page 682.

About RAID levels

Supported RAID levels vary by FortiMail model.

FortiMail 400B, 400C, and 5002B models use software RAID controllers which support RAID levels 0 or 1. You can configure the log disk with a RAID level that is different from the email disk.

FortiMail 1000D, 2000A, 2000B, 3000C, 3000D and 4000A models use hardware RAID controllers that require that the log disk and mail disk use the same RAID level.

FortiMail 100C, 200D, and 5001A models do not support RAID.

The available RAID levels depend on the number of hard drives installed in the FortiMail unit and different FortiMail models come with different number of factory-installed hard drives. You can added more hard drives if required. For details, see “Replacing a RAID disk” on page 304.

The following tables describe RAID levels supported by each FortiMail model.

Table 30:FortiMail supported RAID levels

Number of Installed Hard Drives Available RAID Levels Default RAID Level
1 0 0
2 0, 1 1
3 0, 1 + hot spare, 5 5
4 5 + hot spare, 10 10
5 5 + hot spare, 10 + hot spares 10 + hot spares
6 10, 50 10
7 or more 10, 10 + hot spares, 50, 50 + hot spares 50 + hot spares

Hot spares

FortiMail models with a hardware RAID controller have a hot spare RAID option. This feature consists of one or more disks that are pre-installed with the other disks in the unit. The hot spare disk is idle until an active hard disk in the RAID fails. Then the RAID immediately puts the hot spare disk into service and starts to rebuild the data from the failed disk onto it. This rebuilding may take up to several hours depending on system load and amount of data stored on the RAID, but the RAID continues without interruption during the process.

The hot spare feature has one or more extra hard disks installed with the RAID. A RAID 10 configuration requires two disks per RAID 1, and has only one hot spare disk. A RAID 50 configuration requires three disks per RAID 5, and can have up to two hot spare disks.

Configuring RAID for FortiMail 400B/400C/5002B models

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

To view and configure RAID levels

  1. Go to System > RAID > RAID System.

Figure 124:RAID System tab (FortiMail-400)

GUI item Description
Device Displays the name of the RAID unit. This indicates whether it is used for log message data or for mailboxes, mail queues, and other email-related data.

This is hard-coded and not configurable.
Unit Displays the internal mount point of the RAID unit. This is hard-coded and not configurable.
Level Displays the RAID level that indicates whether it is configured for optimal speed, failure tolerance, or both. For more information on RAID levels, see “About RAID levels” on page 298.
Resync Action Displays the status of the RAID device.

•      idle: The RAID is idle, with no data being written to or read from the RAID disks.

•      dirty: Data is currently buffered, waiting to be written to disk.

•      clean: No data is currently buffered, waiting to be written to the RAID unit.

•      errors: Errors were detected on the RAID unit.

•      no-errors: No errors were detected on the RAID unit.

•      dirty no-errors: Data is currently buffered, waiting to be written to the RAID unit, and there are currently no detected RAID errors. For a FortiMail unit in active use, this is the expected setting.

•      clean no-errors: No data is currently buffered, waiting to be written to the RAID unit, and there are currently no RAID errors. For a FortiMail unit with an unmounted array that is not in active use, this is the expected setting.
Resync Status If the RAID unit is not synchronized and you have clicked Click here to check array to cause it to rebuild itself, such as after a hard disk is replaced in the RAID unit, a progress bar indicates rebuild progress.

The progress bar appears only when Click here to check array has been clicked and the status of the RAID is not clean no-errors.
Speed Displays the average speed in kilobytes (KB) per second of the data transfer for the resynchronization. This is affected by the disk being in use during the resynchronization.
GUI item Description
Apply

(button)

 Click to save changes.
Refresh

(button)

 Click to manually initiate the tab’s display to refresh itself with current information.
ID/Port Indicates the identifier of each hard disk visible to the RAID controller.
Part of Unit Indicates the RAID unit to which the hard disk belongs, if any.

To be usable by the FortiMail unit, you must add the hard disk to a RAID unit.
Status Indicates the hardware viability of the hard disk.
Size Indicates the capacity of the hard disk, in gigabytes (GB).
Delete

(button)

 Click to unmount a hard disk before swapping it.

After replacing the disk, add it to a RAID unit, then click Re-scan.

Back up data on the disk before beginning this procedure. Changing the device’s RAID level temporarily suspends all mail processing and erases all data on the hard disk. For more information on creating a backup, see “Backup and restore” on page 218.

  1. In the Level column, click the row corresponding to the RAID device whose RAID level you want to change.

The Level field changes to a drop-down menu.

  1. Select RAID level 0 or 1.
  2. Click Apply.

A warning message appears.

  1. Click Yes to confirm the change.

Configuring RAID on FortiMail 1000D/2000A/2000B/3000C/3000D/4000A models

To access this part of the web UI, your administrator account’s:

  • Domain must be System
  • access profile must have Read or Read-Write permission to the Others category

For details, see “About administrator account permissions and domains” on page 290.

To configure RAID

  1. Go to System > RAID > RAID System.

Figure 125:RAID System tab (FortiMail-2000A/2000B/3000C/4000A)

GUI item Description
Model Displays the model of the hardware RAID controller.
Driver Displays the version of the RAID controller’s driver software.
Firmware Displays the version of the RAID controller’s firmware.
Set RAID level Select the RAID level, then click Change.

For more information about RAID levels, see “About RAID levels” on page 298.
Change

(button)

 From Set RAID level, select the RAID style, then click this button to apply the RAID level.
Re-scan (button) Click to rebuild the RAID unit with disks that are currently a member of it, or detect newly added hard disks, and start a diagnostic check.

List of RAID units in the array

Unit Indicates the identifier of the RAID unit, such as u0.
Type Indicates the RAID level currently in use.

For more information, see “About RAID levels” on page 298. To change the RAID level, use Set RAID level.
GUI item Description
Status Indicates the status of the RAID unit.

•      OK: The RAID unit is operating normally.

•      Warning: The RAID controller is currently performing a background task (rebuilding, migrating, or initializing the RAID unit).

Caution: Do not remove hard disks while this status is displayed. Removing active hard disks can cause hardware damage.

•      Error: The RAID unit is degraded or inoperable. Causes vary, such as when too many hard disks in the unit fail and the RAID unit no longer has the minimum number of disks required to operate in your selected RAID level. To correct such a situation, replace the failed hard disks.

•      No Units: No RAID units are available.

Note: If both Error and Warning conditions exist, the status appears as Error.
Size Indicates the total disk space, in gigabytes (GB), available for the RAID unit.

Available space varies by your RAID level selection. Due to some space being consumed to store data required by RAID, available storage space will not equal the sum of the capacities of hard disks in the unit.
Ignore ECC Click turn on to ignore the Error Correcting Code (ECC). This option is off by default.

Ignoring the ECC can speed up building the RAID, but the RAID will not be as fault-tolerant.

This option is not available on FortiMail-2000B/3000C models.

List of hard disks in the array

ID/Port Indicates the identifier of each hard disk visible to the RAID controller.
Part of Unit Indicates the RAID unit to which the hard disk belongs, if any.

To be usable by the FortiMail unit, you must add the hard disk to a RAID unit.
Status Indicates the hardware viability of the hard disk.

•      OK: The hard disk is operating normally.

•      UNKNOWN: The viability of the hard disk is not known. Causes vary, such as the hard disk not being a member of a RAID unit. In such a case, the RAID controller does not monitor its current status.
Size Indicates the capacity of the hard disk, in gigabytes (GB).
Delete

(button)

 Click to unmount a hard disk before swapping it.

After replacing the disk, add it to a RAID unit, then click Re-scan.

To change RAID levels

Back up data on the disk before beginning this procedure. Changing the device’s RAID level temporarily suspends all mail processing and erases all data on the hard disk. For more information on creating a backup, see “Backup and restore” on page 218.

  1. Go to System > RAID > RAID System.
  2. From Set RAID level, select a RAID level.
  3. Click Change.

The FortiMail unit changes the RAID level and reboots.

Replacing a RAID disk

When replacing a disk in the RAID array, the new disk must have the same or greater storage capacity than the existing disks in the array. If the new disk has a larger capacity than the other disks in the array, only the amount equal to the smallest hard disk will be used. For example, if the RAID has 400 GB disks, and you replace one with a 500 GB disk, to be consistent with the other disks, only 400 GB of the new disk will be used.

FortiMail units support hot swap; shutting down the FortiMail unit during hard disk replacement is not required.

To replace a disk in the array

  1. Go to System > RAID > RAID System.
  2. In the row corresponding to the hard disk that you want to replace (for example, p4), select the hard disk and click Delete.

The RAID controller removes the hard disk from the list.

  1. Protect the FortiMail unit from static electricity by using measures such as applying an antistatic wrist strap.
  2. Physically remove the hard disk that corresponds to the one you removed in the web UI from its drive bay on the FortiMail unit.

On a FortiMail-2000A or FortiMail-4000A, press in the tab, then pull the drive handle to remove the dive. On a FortiMail-2000B or FortiMail-3000C, press the button to eject the drive.

To locate the correct hard disk to remove on a FortiMail-2000A, refer to the following diagram.

Drive 1 (p0) Drive 4 (p3)
Drive 2 (p1) Drive 5 (p4)
Drive 3 (p2) Drive 6 (p5)

To locate the correct hard disk to remove on a FortiMail-2000B or 3000C, refer to the following diagram.

Drive 1 (p0) Drive 3 (p2) Drive 5 (p4)
Drive 2 (p1) Drive 4 (p3) Drive 6 (p5)

To locate the correct hard disk to remove on a FortiMail-4000A, look for the failed disk. (Disk drive locations vary by the RAID controller model.)

  1. Replace the hard disk with a new hard disk, inserting it into its drive bay on the FortiMail unit.
  2. Click Re-scan.

The RAID controller will scan for available hard disks and should locate the new hard disk. Depending on the RAID level, the FortiMail unit may either automatically add the new hard disk to the RAID unit or allocate it as a spare that will be automatically added to the array if one of the hard disks in the array fails.

The FortiMail unit rebuilds the RAID array with the new hard disk. Time required varies by the size of the array.


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Configuring System Settings

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Configuring system settings

The System menu lets you administrator accounts, and configure network settings, system time, SNMP, RAID, high availability (HA), certificates, and more.

This section includes:

  • Configuring network settings
  • Configuring system time, configuration options, SNMP, and FortiSandbox
  • Customizing GUI, replacement messages and email templates
  • Configuring administrator accounts and access profiles
  • Configuring RAID
  • Using high availability (HA)
  • Managing certificates
  • Configuring IBE encryption
  • Configuring certificate bindings

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