hi,
On Thu, 2006-10-05 at 12:39 +0200, Werner Reisberger wrote:
Quoting Jamie Zawinski jwz@jwz.org:
SmartList can do nothing here without heavy modifications. It's rather a question of duplicate delivery suppression on the recipient or MTA site. E. g. the cyrus imap/pop3 server would deliver only one copy (with the default configuration). Probably there is also a solution at the MTA (postfix) side. You should ask the postfix community.
at http://www.postfix.org/faq.html#duplicate you can read how Postfix behaves,
Postfix sends duplicate mail Some people will complain that Postfix sends duplicate messages. This happens whenever one message is mailed to multiple addresses that reach the same user. Examples of such scenarios are:
* One message is sent to the user, and to an alias that lists the user. The user receives one copy of the mail directly, and one copy via the alias.
* One message is sent to multiple aliases that list the user. The user receives one copy of the mail via each alias.
Some people will even argue that this is the "right" behavior. It is probably more a matter of expectation and of what one is used to.
This can be "fixed" only by making Postfix slower. In the above examples, Postfix would first have to completely expand all distribution lists before starting any delivery. By design, Postfix delivers mail to different destinations in parallel, and local delivery is no exception. This is why Postfix can be faster than sendmail.
So, there's no fix on the Postfix side either.
Miquel