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.
--
Viktor.
