Fixup SMTP stops mail traffic???

rolandshum · ‎02-12-2008

I have 2 ASA's they have both been running for over a year. Suddenly 1 stopped passing SMTP traffic. I couldn't telnet via port 25 either. A quick google search and I find a tip that says to take out the fixup SMTP line from the config. Suddenly the mail is flowing again. Anyone run into this before?

abinjola · ‎02-12-2008

If you have fixup smtp turned on and the mail server supports ESMTP then you would have to necessarily turn off the fixup smtp

jim · ‎02-13-2008

Same problem. Ironmail servers require ESMTP so I had to disable fixup smtp. Though on the ASA there is no fixup. Its all handled under "service-policies".

abinjola · ‎02-13-2008

yes ..in ASA all fixups are turned into Inspects..equivalent of fixup smtp is inspect esmtp.

tschimmel · ‎02-13-2008

I had this issue the other day, and it was an issue with McAfee. The new patch applied to the server on our DMZ had a bug and stopped passing port 25. Nice huh? Have your ITRO guys been tinkering?