Schwartz, Tobias (DAV):
> 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.
When a mailing list has many recipients, MailMan must break up the
list and deliver the same message content and message ID with up
to 100 recipients at a time. The SMTP protocol requires that Postfix
can receive 100 recipients per mail delivery request. The default
Postfix limit is larger, with "smtpd_recipient_limit = 1000".
So, MailMan is supposed to deliver the same content multiple
times, it just isn't supposed to duplicate the recipients.
Wietse
