I'm trying to stop duplicate emails being delivered to addresses
contained multiple times in expanded recipient aliases.
e.g. As an example, my virtual might contain:
fred@xxxxxxxxxxxx list1@xxxxxxxxxxxx
fred@xxxxxxxxxxxx list2@xxxxxxxxxxxx
fred@xxxxxxxxxxxx list3@xxxxxxxxxxxx
fred@xxxxxxxxxxxx list4@xxxxxxxxxxxx
When a single email is sent to our Postfix server with two or more of
these 4 addresses, two copies are delivered. The other two copies are
ignored by the LMTP service with two warnings in /var/log/messages like:
May 3 13:00:00 myserver lmtpd[28698]: dupelim: eliminated duplicate
message to user.fred id <01c101c78d83$a4b6e3f0$0201a8c0@IVVAIO> (delivery)
May 3 13:00:01 myserver lmtpd[28698]: dupelim: eliminated duplicate
message to user.fred id <01c101c78d83$a4b6e3f0$0201a8c0@IVVAIO> (delivery)
In /etc/imapd.conf I have:
duplicatesuppression: yes
Which I realize is a Cyrus IMAP feature rather than an explicit Postfix
feature. Is there any way to eliminate the extra copy so only one is
actually delivered, either in Postfix's or Cyrus' configuration?
I've tried a huge duplicate_filter_limit in Postfix's main.cf too and
restarted Postfix, but this didn't deal with the issue:
duplicate_filter_limit = 20000
Top brass don't like having multiple copies of the same message to deal
with.
Any assistance would be greatly appreciated,
Cheers
--
Chuck Amadi
ROK Corporation Limited
Ty ROK,
Dyffryn Business Park,
Llantwit Major Road,
Llandow,
Vale Of Glamorgan.
CF71 7PY
Tel: 01446 795 839
Fax: 01446 794 994
International Tel: +44 1446 795 839
email: chuck.amadi@xxxxxxxxxxx
This email is confidential to the addressee only. If you do not believe
that you are the intended recipient, do not pass it on or copy it in any
way. Please delete it immediately.
----
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