I had some TLS incomming connection issues with my Zimbra (5.0) mail server. Some but not all TLS connections where having this problem:
Apr 3 15:04:30 mail postfix/smtpd[7305]: timeout after DATA from
I haven’t found a conclusive solution, but the either restart postfix or adjusting the MTU on the mail server interface may fix the problem.
Some references:
- http://www.zimbra.com/forums/administrators/11840-solved-some-outside-emails-being-delayed-4.html#post61541
- http://www.irbs.net/internet/postfix/0511/1168.html
2 comments ↓
what mtu size you used?
i try change the mtu size but still no luck
I forget what I used previously with vmware. I'm now using a mtu of 1500 under kvm and haven't noticed that same problem.
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