On 2015-04-04 Mathias Jeschke wrote: > I'm experiencing an issue with duplicate suppression and recipient > address verification. > > Basically I'm looking for a solution to suppress mail duplicates when a > mail is sent to more than one recipient (typically virtual aliases) and > those recipients/aliases are not disjoint, e.g. consider this alias map: > > gro...@example.com us...@example.com,us...@example.com > gro...@example.com us...@example.com,us...@example.com > > If someone sends a mail to group1@ and group2@ the user2@ gets two > copies of the same mail. Back then, when we used Cyrus there was a > feature called "duplicatesuppression" that did the trick, but Dovecot > does not seem to have such feature.
This should probably be asked on the respective Dovecot mailing list, since it's an MDA rather than an MTA problem. I don't think you can suppress these duplicates in Postfix, because the MTA correctly receives and delivers two separate transmissions (one for group1, the other for group2). Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
