I'm building a simple pair of front MX-servers to get rid of our cisco
ironports. For spam and
virus-scanning i'd like to have spamassassin and clamav doing pre-filtering
during smtp-dialog
rejecting bad mails and forwarding good mails to internal mail-farm.
On 19.10.18 10:57, Olivier wrote:
While for virus you may argue that there is a clear cut between clean
and infected message,
not even - clamav, especially third party signatures, tend to block phish
messages, which (surprise) can be interesting for some.
it is far from being as clear for spam. What you
consider spam and would reject may be completly valid for another user.
So, rejecting spam during smtp-dialog is risky, that is why most resolve
to some sort of quarantine, and that is when amavis comes handy.
both spamass-milter and amavisd-milter have ways only to reject spam scoring
over some threshold.
Will pass some possible spam, but rejects much od it.
I don't trust in quarantines much, someone must take care of them and not
forget/miss anything.
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