--On Tuesday, December 01, 2015 12:03 AM +0000 Viktor Dukhovni
<postfix-us...@dukhovni.org> wrote:
On Mon, Nov 30, 2015 at 03:11:39PM -0800, Quanah Gibson-Mount wrote:
--On Monday, November 30, 2015 3:08 PM -0800 Quanah Gibson-Mount
<qua...@zimbra.com> wrote:
>> Either default_destination_recipient_limit has to be bumped up via
>> postconf, or -o receive_override_options=no_address_mappings requires
>> setting to resolve this so far.
Hm, so according to our clients setting
default_destination_recipient_limit to a size larger than the list size
fixed the issue for them. However, I just tested that as well, and it
had no effect either. So really, the only way that I stop seeing
duplicates is to set -o
receive_override_options=no_address_mappings
The main effect of higher recipient limits is to reduce the CPU
cost of processing multiple copies of the same message. Any effect
on duplicate suppression is largely coincidental.
Duplicates arise when multiple lists have common recipients, and
whether these lead to multiple deliveries or not depends mostly on
enable_original_recipient.
That's not really what we're seeing. What we are seeing is:
A list has 51 or more members (users1 through users55)
One of those list members sets their email to forward somewhere else (local
or remote, doesn't matter) (say, user50 forwards to user70).
The user who has a forward set will receive two copies of the email at
their forward location unless no_address_mappings is specified.
--Quanah
--
Quanah Gibson-Mount
Platform Architect
Zimbra, Inc.
--------------------
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