Adam, My bad, as I realized it wasn't an MTA, but was caught up reading something else when I was typing. However, this doesn't change the fact that previously, Cyrus did duplicate suppression, and Dovecot does not... which is why this worked when my imap/pop server was Cyrus, and now I get duplicates with Dovecot.
I'm not sure postfix (the MTA) should be doing the duplicate suppression. But looking around online, it seems like there is a very large argument that goes something like: "Dovecot should do it" -> "It's not dovecot's problem, it's the maillist software" -> "MTA should do it" -> "Dovecot should do it". -> Rinse, Repeat. Oh, and some argue something like procmail/sieve should do it. Given all that, dovecot probably shouldn't do duplicate suppression. Needless, though, there's still seemingly no good answer for those that use Dovecot for imap/pop. BTW, this is the closest I can find: http://wiki.dovecot.org/MTA -Ryan Stasel On Jan 5, 2010, at 09:13 , Adam McGreggor wrote: > On Tue, Jan 05, 2010 at 08:28:58AM -0800, Ryan Stasel wrote: >> On Jan 5, 2010, at 06:59 , Mark Sapiro wrote: >>> 2) something in the outgoing MTA to you path that used to deliver only >>> 1 of multiple messages with duplicate message-ids changed and is no >>> longer dropping dups. >> >> This looks like the case. It looks like Dovecot doesn't have any >> kind of duplicate suppression (at least, not that I can find > > Dovecot is *not* an MTA. > > q.v. <http://wiki.dovecot.org/MailServerOverview>: > "As an IMAP and POP3 server, Dovecot provides a way for mail-user > agents [MUA] to access their mail. As such, Dovecot is NOT > responsible for receiving mail from other servers. Dovecot > presents mail already stored on the system to MUA's." > > or, indeed, > <http://www.dovecot.org/list/dovecot/2009-November/044640.html> > > (I thought the expression "Dovecot is not a[n] MTA" was *somewhere on > the dovecot wiki, I can't seem to find it.) > > de-duplication should be handled by the MTA before passing it to an > IMAP/POP server > > I'd go back to the MTA(s) (Exim, Postfix, Sendmail, &c) config, and see > what's going on there. > > -- > ``The reasonable man adapts himself to the world: the unreasonable one > persists in trying to adapt the world to himself. Therefore all progress > depends on the unreasonable man.'' (George Bernard Shaw) ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
