At 07:22 2004-02-05 +0100, Peter Rosa wrote:
What I'm looking for (and many users would too) is the solution to disable
TRAFFIC made by spam messages.
Run the DNSBL config at the SMTP layer. Then, the transaction is
terminated right after the EHLO hostname / MAIL FROM / RCPT TO exchanges,
before the DATA (header and body) transaction.
I do not know exact situation in foreign, but in Slovakia we have measured
lines (for ISPs pricing policy), e.g. monthly traffic up to 2GB in both
directions, etc. So the very handy solution for us is to stop spam BEFORE it
arrives.
Er, get a hosting account somewhere outside of your measured traffic area,
filter your mail there, and transfer legitimate messages from there?
And dbsbl has not very high accuracy - new spammer appears every minute,
that's why a lot of spam moves through.
An SMTP-time DNSBL is the _ONLY_ current solution which will permit you to
discard mail before taking the hit for the body. Not yet implemented is a
sender authentication scheme (I don't mean SASL here) wherein the
legitimacy/security of the sending host is encapsulated in a trust mechanism.
I'm calling to disable spam at MTA level, not to remove it from my mailbox !
... in which case, procmail isn't your tool and you're really looking for a
different discussion list to pose your question, since procmail will not
see the message until the traffic hit has occurred.
---
Sean B. Straw / Professional Software Engineering
Procmail disclaimer: <http://www.professional.org/procmail/disclaimer.html>
Please DO NOT carbon me on list replies. I'll get my copy from the list.
_______________________________________________
procmail mailing list
procmail(_at_)lists(_dot_)RWTH-Aachen(_dot_)DE
http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail