Thread Info
  • State Not Answered
  • Locked Locked
  • Replies 1 reply
  • Subscribers 26 subscribers
  • Views 1572 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

timeout on port 25 sending outgoing email through sophos

mouk

Hi,

We are having issues delivering outgoing emails from our LAN email server to the sophos XG. The LAN mail server uses postfix to deliver outgoing emails to sophos (smarthost-style config)

What we are seeing is basically this:

johan@mail:~$ telnet 192.168.3.1 25
Trying 192.168.3.1...
telnet: Unable to connect to remote host: Connection timed out
johan@mail:~$ telnet 192.168.3.1 25
Trying 192.168.3.1...
Connected to 192.168.3.1.
Escape character is '^]'.
220 outgoing.company.com ESMTP ready

Sometimes port 25 is answered immediately, sometimes it takes a few seconds, and sometimes it simply times out completely.

Last Saturday during almost 24 hours it timed out continuously, then it started working again without issues, until today (Monday) around 12:00, when the timeouts started again, and they are still going on.

Sophos support is looking into this, but it's not going fast. Anyone here with insights to share? Ideas?

Doing tail -f /log/*.log | grep "internal_mailserver_ip" reveals that NOTHING relevant is logged during the timeouts.



This thread was automatically locked due to age.