On 2023-09-13 09:00, Matus UHLAR - fantomas via Postfix-users wrote (in another thread):

you may need to limit number of concurrent amavis instances if you don't have enough of CPU or RAM, e.g. in main.cf:

smtp-amavis_destination_concurrency_limit = 2

and in amavis config:

$max_servers = 2;

which have prompted me to take a look at my own amavis process limit.

I use amavis as a post-queue filter for submission (via 587, 465, or sendmail(1)) and amavis-milter as pre-queue filter on port 25.  What is the correct way to limit the total number of active concurrent amavis process?

Will I get the desired effect if I ensure that _destination_concurrency_limit for the post-queue amavis smtp plus the process limit for the port 25 smtpd does not exceed the number of amavis processes?

Thanks,
Jesper

--
Jesper Dybdal
https://www.dybdal.dk

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