On 27.01.22 22:47, Víctor Rubiella Monfort wrote:
bent smtpprox samples are so useful it's just what i was looking for.
Consider recheck doc link on this page
http://www.postfix.org/FILTER_README.html because is not upgraded
(it's ok on http://www.postfix.org/SMTPD_PROXY_README.html).
Considering you recomendation to use milters instead of After-Queue
filters, I was reading several documentation about pros/cons, and I'm
specially worried about the delay of our antispam and antivirus
scanner introduce on process. In fact I want to move to Before-Queue
the lighter functionalities of current filter. In any case I will test
both aproaches in a stress test.
pros:
you can reject spam and viruses before they are received, so you don't have
to deal with bounces.
the delay is not a problem for remote servers, they can wait a few minutes
without problems (rfc 5321 section 4.5.3.2.6. explains that the DATA timeout
should be 10 minutes)
since the antispam/antiviru filter needs to process the mail before it's
delivered, the delay should be no different than with after-queue content
filter.
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