A Free Email Red-Hat Account?
Edward Krack
ekrack at sigecom.net
Mon Mar 27 02:00:26 UTC 2006
>>>THIS MIGHT SEND TWICE<<<
Edward Krack <ekrack at localhost.krack.com>
Edward Krack <ekrack at localhost.krack.com.redhat.com>
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notify_classes = resource, software
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
Postfix ignores the owner-list alias
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