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
