Hi, I have a few postfix-2.8.7 systems on fedora15 that connect with another postfix-2.8.7 system. I'm receiving the following messages periodically in the logs:
Apr 24 16:24:43 mailrelay postfix/smtpd[8814]: timeout after DATA (9832 bytes) from mail02.example.com[68.XXX.YYY.45] Apr 24 16:24:43 mailrelay postfix/smtpd[10106]: timeout after DATA (9716 bytes) from mail02.example.com[68.XXX.YYY.45] Apr 24 17:10:21 mailrelay postfix/smtpd[18050]: timeout after DATA (2894 bytes) from mail01.example.com[64.AAA.BBB.5] Apr 24 17:10:21 mailrelay postfix/smtpd[19315]: timeout after DATA (6801 bytes) from mail01.example.com[64.AAA.BBB.5] Apr 24 17:14:44 mailrelay postfix/smtpd[23281]: timeout after DATA (5528 bytes) from mail02.example.com[68.XXX.YYY.45] Apr 24 17:34:44 mailrelay postfix/smtpd[28649]: timeout after DATA (9832 bytes) from mail02.example.com[68.XXX.YYY.45] Apr 24 17:34:44 mailrelay postfix/smtpd[23281]: timeout after DATA (9716 bytes) from mail02.example.com[68.XXX.YYY.45] mailrelay receives mail from both mail01 and mail02. All three servers are in different parts of the country on 10mbs ethernet links. What could be the cause of such an error? I've checked the network settings, thinking something like MTU could be the issue, but it is the same on both sides. Could this be a kernel or TCP problem on Linux? If so, any suggestions for what parameters may cause such a result? Thanks, Alex
