FortiManager Open Ports FortiGuard Open Ports FortiAnalyzer Open Ports FortiManager Open Ports FortiGuard Open Ports

FortiMail Open Ports

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When operating in its default configuration, FortiMail does not accept TCP or UDP connections on any port except port1 and port2 network interfaces, which accept:

  • ICMP pings,
  • HTTPS connections on TCP port 443,
  • and SSH connections on TCP port 22.
  Incoming Ports
  Purpose Protocol/Port
Admin by Console or PC TCP/443 or TCP/80 or TCP/22 or TCP/23
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
Others Dyn DNS TCP/80 etc.
Alert Email TCP/25
LDAP or LDAPS TCP/389 or TCP/636
RADIUS Auth TCP/1812
NAS TCP/21, TCP/22, TCP/2049
FortiSandbox Community Cloud Communication TCP/443, TCP/514
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Note that FortiMail uses the following URLs to access the FortiGuard Distribution Network (FDN):


Furthermore, FortiMail performs these queries and updates listed below using the following ports and protocols:

  • FortiGuard Antispam rating queries: UDP 53, 8888, 8889
  • FortiGuard AntiVirus Push updates: UDP 9443
  • FortiGuard Antispam or AntiVirus updates: TCP 443