Dear Wietse, I apologize "accusing" Postfix. Looking at your answers, I think I have to investigate whether and why MailMan has put messages with the same message-id and same recipient multiple times to the smtp deamon.
Kindest regards, Tobias -----Ursprüngliche Nachricht----- Von: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] Im Auftrag von Wietse Venema Gesendet: Dienstag, 10. Juni 2014 16:23 An: Postfix users Betreff: Re: AW: Re: Correctness of the queue management Schwartz, Tobias (DAV): > Dear Wietse, > > thank you for your reply! > You can find the log entries for a particular recipient below: > > Jun 5 15:25:18 172 postfix/smtpd[28500]: 9EE2B185BF0: > client=unknown[::1] Jun 5 15:25:18 172 postfix/cleanup[29770]: > 9EE2B185BF0: message-id=<1233AD723A027C47B6CDC1668C2AF06D60594C2F@xxx> > Jun 5 15:25:28 172 postfix/qmgr[31501]: 9EE2B185BF0: from=<xxx>, > size=35964, nrcpt=1 (queue active) Jun 5 15:51:12 172 > postfix/smtp[31769]: 9EE2B185BF0: to=<xxx>, relay=xxx[xxx]:25, > conn_use=148, delay=1554, delays=9.6/1543/0.01/1.4, dsn=2.6.0, > status=sent (250 2.6.0 message received) Jun 5 15:51:12 172 > postfix/qmgr[31501]: 9EE2B185BF0: removed The above receives and delivers ONE MESSAGE with queue ID 9EE2B185BF0. Postfix delivers the message EXACTLY ONCE. > Jun 5 16:25:26 172 postfix/smtpd[1149]: 7ED581862A6: > client=unknown[::1] Jun 5 16:25:26 172 postfix/cleanup[2274]: > 7ED581862A6: message-id=<1233AD723A027C47B6CDC1668C2AF06D60594C2F@xxx> > Jun 5 16:29:09 172 postfix/qmgr[31501]: 7ED581862A6: from=<xxx>, > size=37578, nrcpt=1 (queue active) Jun 5 16:55:09 172 > postfix/smtp[4611]: 7ED581862A6: to=<xxx>, relay=xxx[xxx]:25, > conn_use=89, delay=1783, delays=223/1558/0.01/1.5, dsn=2.6.0, > status=sent (250 2.6.0 message received) Jun 5 16:55:09 172 > postfix/qmgr[31501]: 7ED581862A6: removed The above receives and delivers ONE MESSAGE with queue ID 7ED581862A6. Postfix delivers the message EXACTLY ONCE. > Jun 5 17:23:22 172 postfix/smtpd[5764]: 614FC185577: > client=unknown[::1] Jun 5 17:23:22 172 postfix/cleanup[6995]: > 614FC185577: message-id=<1233AD723A027C47B6CDC1668C2AF06D60594C2F@xxx> > Jun 5 17:26:45 172 postfix/qmgr[31501]: 614FC185577: from=<xxx>, > size=37582, nrcpt=1 (queue active) Jun 5 17:49:31 172 > postfix/smtp[9033]: 614FC185577: to=<xxx>, relay=xxx[xxx]:25, > conn_use=69, delay=1569, delays=203/1364/0/1.3, dsn=2.6.0, status=sent > (250 2.6.0 message received) Jun 5 17:49:31 172 postfix/qmgr[31501]: > 614FC185577: removed The above receives and delivers ONE MESSAGE with queue ID 614FC185577. Postfix delivers the message EXACTLY ONCE. If there is any email duplication, the duplication happens before Postfix receives the email. Wietse
