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question about default postfix config

Posted: 15 Nov 2020 15:00
by tobiasp
Hi,

I saw that efa setup sets

Code: Select all

postconf -e "default_destination_recipient_limit = 1"
.
what is the reasoning behind this?

cheers,
Tobias

Re: question about default postfix config

Posted: 15 Nov 2020 19:29
by shawniverson
Off the top of my head it is to prevent excessive throttling/defers from remote SMTP relays. I'll have to look back to see exactly what prompted this limit.

Re: question about default postfix config

Posted: 15 Nov 2020 19:37
by tobiasp
thanks for your reply. the reason why I ask is that this setting has more implication than I first thought. I was in the process of setting up a "destination_rate_delay" and wondering why it was not working, but having an destination_recipient_limit of 1 means some settings are per recipient and not per domain... (see http://www.postfix.org/postconf.5.html# ... ient_limit) so essentially a rate_delay would be mostly useless in throttling emails. maybe setting destination_concurrency_limit would be more suited?

Re: question about default postfix config

Posted: 15 Nov 2020 20:07
by shawniverson
You can go ahead and raise this limit if you like. I'll study this and see about using the other setting instead as a future default.