MailScanner at ecs.soton.ac.uk
Thu Oct 20 18:52:12 IST 2005
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Chris W. Parker wrote:
>I'd like know if it's possible to delete a message that has N or more
>recipients that do not appear in /etc/mail/access. I just got an email
>that scored only a 6.23 (regular spam is at 5, high spam is at 11) but
>of the six recipients on the email only one of them was valid. The other
>addresses were just dictionary type attack addresses (as opposed to
>former employees' addresses).
>With an option like 'Delete On Invalid Recipient Count = N' in place MS
>could have deleted this email even though it scored below the high spam
>score (which I have set to delete).
Unfortunately MailScanner has no way of accurately determining what a
vaid/invalid address is. Relying on an access file isn't very good for
general systems. How much spam is sent as multiple recipients on 1
message? I think most is done 1 recipient per message.
I would think a modification to milter-ahead would be better. The author
of that milter is always open to good suggestions, so try asking him to
write it for you. Google will find his address (or ask
Steve.Swaney at fsl.com).
>In my environment I could safely set it to something low like 2 and
>still be confident that I wouldn't be cutting out any legitimate email.
>Or perhaps this is already possible with a custom SA rule or a milter?
If you can produce a db or list then it is a very simple custom
function, tie it to Required SpamAssassin Score and/or Spam Actions.
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