On Feb 5, 2018, at 05:26, Allen Coates <znab...@cidercounty.org.uk> wrote:
Is this a reliable bad-host detector?
On 05.02.18 12:20, LuKreme wrote:
It is a very good indicator of spam. It is also an indicator of a
misconfigured mail server (in the case of spammers, intentionally so).
I would say "ignored" rather than "intentionally". Many admins either do not
know, or do not care (in case of spammers), since it's time consuming (when
you have less than /24).
Anyone kitting this error on your postfix is going to be unable to send
mail to the majority of mail servers.
it's quite funny when they blame others for rejecting mail from servers
without fcrdns.
OT: I'd love an option to split these kinds of errors into a separate log
file. I keep maillogs for a long time, but this Gary age I'd love to dump
after a day or two).
yeah, filtering logs to different files is outta postfix scope :)
use syslog-ng...
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