• Hi everyone,

    I am new to pfsense and firewall issue, so I hope someone here can give me a hand about this issue.

    The environment is the following:

    Pfsense IP:  –> Firewall
    Mail Server 1:  --> currently hosting my company emails
    Mail Server 2: --> just for smtp service

    Pfsense NAT: External 25 --> port 25
                          External 1025 --> port 25

    Here is the situtation.

    Mail Server 1 can send out emails to other domains and receive emails from other domains.
    Mail Server 2 can send out emails to other domains as well, however it has problem to send emails to Mail Server 1 and it has the following error msg in mail log

    45EB062CB5: to=tsuser1@xxx.com, relay=none, delay=29822, delays=29790/0.01/32/0, dsn=4.4.1, status=deferred (connect to mail.xxx.com[x.x.x.x]:25: Connection timed out)

    remarks: xxx.com is my company domain, x.x.x.x is my company public IP(Pfsense External IP)

    In this situation, I believe there is a connection problem from Mail Server 2 to external IP port 25, I think there should have some Firewall Rules I need to add to solve this problem.


  • Make sure that you have NAT reflection turned on (though I think I read somewhere on the forums that it is currently broken).

  • Thx, it works after i turned on the NAT Reflection.

  • @j90785859:

    Thx, it works after i turned on the NAT Reflection.

    I had the same problem with my mail server, NAT reflection fixed it perfect.

    -Jamie M.