Re: How to relay email to a different smtp server if received on a different (reinjection) port

[lst_hoe02]

Zitat von "martijn.list" <martijn.l...@gmail.com>:

Hi,

I have a after queue content filter. The content filter injects the
email back into Postfix after filtering the email, aka reinjection port.
After reinjecting the email, I would like Postfix to relay the email to
a different host than the default relay host, i.e., if email is received
by Postfix on the reinjection port, relay the email to server 192.168.6.6.

One solution seems to define a content_filter for the reinjection
handler in master.cf:

external unix -       -       n       -       4      smtp

127.0.0.1:10026 inet  n       -       n       -       10      smtpd
            -o content_filter=external:192.168.6.6:25
            -o smtpd_recipient_restrictions=permit_mynetworks,reject
            -o mynetworks=127.0.0.0/8

The content filter reinjects the email back into Postfix on
127.0.0.1:10026. Postfix then again filters the email and uses the
external processor which sends the email to 192.168.6.6:25.

Is this the best way to do this or are there better/more elegant ways to
do this?

Hello Martijn



Regards

Andreas

as far as i know this is the best solution if "routing by incoming service" is required and no multi-instance setup is desired. The other solutions are more address (access tables with action FILTER) and content centric (header/body checks).

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