POP3 servers
FortiOS can authenticate users who have accounts on POP3 or POP3s email servers. POP3 authentication can be configured only in the CLI.
To configure the FortiGate unit for POP3 authentication:
config user pop3 edit pop3_server1 set server pop3.fortinet.com set secure starttls set port 110
end
To configure a POP3 user group:
config user group edit pop3_grp set member pop3_server1
end
A user group can list up to six POP3 servers as members.