FortiMail Open Ports
FortiMail Open Ports
| Incoming Ports
Purpose |
Protocol/Port | |
| Email Client | Quarantine View/Retrieve | TCP/80 or TCP/443 or TCP/110 |
| SMTP or SMTPS | TCP/25 or TCP/465 | |
| POP3 or POP3S | TCP/110 or TCP/995 (server mode only) | |
| IMAP or IMAPS | TCP/143 or TCP/993 (server mode only) | |
| FortiManager | Config/Firmware Push | TCP/22 |
| SNMP Poll | TCP/161 | |
| FortiGuard | AV Push | UDP/9443 |
| External Email Server | SMTP or SMTPS | TCP/25 or 465 |
| Protected Email Server | SMTP or SMTPS | TCP/25 or 465 |
| Outgoing Ports
Purpose |
Protocol/Port | |
| FortiAnalyzer | Syslog | UDP/514 |
| FortiManager | Reg, Config Backup, Config/Firmware
Pull |
TCP/443 |
| SNMP Traps | UDP/162 | |
| FortiGuard | AS Rating | UDP/53 |
| AV/AS Update | TCP/443 | |
| External
Email Server |
SMTP or SMTPS | TCP/25 or TCP/465 |
| Protected Email Server | SMTP or SMTPS | TCP/25 or TCP/465 |
| POP3 Auth | TCP/110 | |
| IMAP Auth | TCP/143 |
FortiMail Open Ports
| Outgoing Ports
Purpose |
Protocol/Port | |
| Others | Dyn DNS | TCP/80 etc. |
| DNS, RBL | UDP/53 | |
| NTP | UDP/123 | |
| Alert Email | TCP/25 | |
| LDAP or LDAPS | TCP/389 or TCP/636 | |
| RADIUS Auth | TCP/1812 | |
| NAS | TCP/21, TCP/22, TCP/2049 |
Note that FortiMail uses the following URLs to access the FortiGuard Distribution Network (FDN):
- fortiguard.net l service.fortiguard.net l support.fortinet.com
Furthermore, FortiMail performs these queries and updates listed below using the following ports and protocols:
- FortiGuard Antispam rating queries: UDP 53, 8888, 8889 l FortiGuard AntiVirus Push updates: UDP 9443 l FortiGuard Antispam or AntiVirus updates: TCP 443
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