Jaroslaw Rafa via Postfix-users:
> Dnia 21.05.2024 o godz. 22:27:04 Henri Schom?cker via Postfix-users pisze:
> >
> > So what we need to do is to limit the sending rate to all MX servers
> > under protection-outlook-com.
>
> Postfix does not support this, Wietse probably could explain why.
> You can select a transport by destination domain, but not by destination MX.
> Probably what you need to do is to write an external program that interfaces
> with Postfix via "socketmap" or "tcp" type lookup table, checks the MX for
> the destination domain, and returns the name of the transport to be used.
You could try to aggregate all deliveries for protection-outlook-com
customers with a FILTER action..
check_recipient_mx_access hash:/etc/postfix/recipient_mx_access
With recipient access actions like:
protection-outlook-com filter smtp-protection-outlook-com
And in master.cf have a dedicated SMTP client with that service
name smtp-protection-outlook-com, and configure cocurrency
limts and rate delays for that service name.
I'm on vacation, so no time to workd out a complexrte example now.
Wietse
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