Hi all I operate two very different postfix machines. One is heavy loaded and with a decent hardware, the other is my home machine. Both have CentOS5 with postfix-2.3.3, amavis, spamassassin and clamav. On both machines there is a mail account signed on the same mailing list (in particular, the popular Squid web proxy daemon mailing list). >From time to time, one or both of these accounts exhibit the same problem while receiving a message from the mentioned mailing list. A message is received saying (I paste a transcript of the error I receive from my home machine, but the problem on the other is the same):
Return-Path: <[EMAIL PROTECTED]> From: [EMAIL PROTECTED] (Mail Delivery System) To: [EMAIL PROTECTED] (Postmaster) Subject: Postfix SMTP server: errors from squid-cache.org[12.160.37.9] Transcript of session follows. Out: 220 barattolo.rinnanet.it ESMTP Postfix In: HELO squid-cache.org Out: 250 barattolo.rinnanet.it In: MAIL FROM:<[EMAIL PROTECTED]> Out: 250 2.1.0 Ok In: RCPT TO:<[EMAIL PROTECTED]> Out: 250 2.1.5 Ok In: DATA Out: 354 End data with <CR><LF>.<CR><LF> Out: 451 4.3.0 Error: queue file write error Session aborted, reason: lost connection Having a look at the logs, I find: Sep 24 06:51:13 barattolo postfix/smtpd[5832]: connect from squid-cache.org[12.160.37.9] ... Sep 24 06:52:08 barattolo postfix/smtpd[5832]: NOQUEUE: filter: RCPT from squid-cache.org[12.160.37.9]: <squid-cache.org[12.160.37.9]>: Client host triggers FILTER smtp-amavis:[127.0.0.1]:10024; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=SMTP helo=<squid-cache.org> Sep 24 06:52:08 barattolo postfix/smtpd[5832]: 2928F10000E: client=squid-cache.org[12.160.37.9] ... Sep 24 07:52:07 barattolo postfix/cleanup[5848]: warning: 2928F10000E: read timeout on cleanup socket ... Sep 24 08:01:48 barattolo postfix/smtpd[5832]: disconnect from squid-cache.org[12.160.37.9] I'm tempted to think that this is a mailing list's manager problem, and to forget about it, but I would like to be sure that the fault is not partly or totally mine. Any suggestions?