Steven T. Hatton wrote:
It just keeps getting worse. I really don't want to change my email address,
but it's all over the Internet, and the spammers are killing my inbox. I
don't want to spend a lot of time on this issue, I just want to be able to
block these idiots. I'm running a postfix mail server. Is there an easy was
to thwart spam? I use the filters built into KMail, but they seem almost
worthless.
Hi Steven,
adding
smtpd_recipient_restrictions = [ ......],
reject_rhsbl_client
blackhole.securitysage.com,
reject_rhsbl_sender
blackhole.securitysage.com,
reject_rbl_client relays.ordb.org,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client
proxies.blackholes.wirehub.net,
reject_rbl_client bl.spamcop.net,
reject_rbl_client sbl.spamhaus.org,
reject_rbl_client opm.blitzed.org,
reject_rbl_client dnsbl.njabl.org,
reject_rbl_client list.dsbl.org,
reject_rbl_client multihop.dsbl.org
to the "main.cf" on the mailserver already reduced the amount of spam by
approx. 50% on our server [....] means that you should leave your
current policies like "permit_mynetworks" how it currently is.
Postgrey http://isg.ee.ethz.ch/tools/postgrey/ has also been mentioned
to reduce the amount of spam quite well. I'll use that on one of the
upcoming mailservers, so I don't have any experience with that up to now.
However both recommendations just work on mailservers directly accepting
the mail,
best
Joachim
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