* Stan Hoeppner <s...@hardwarefreak.com>: > Ralf Hildebrandt put forth on 3/4/2010 1:55 AM: > > > "The Spamhaus DBL is a realtime database of domains (typically web site > > domains) found in spam messages. Mail server software capable of > > scanning email message body contents for URIs can use the DBL to > > identify, classify or reject spam containing DBL-listed domains." > > Two paragraphs later, on the same Spamhaus web page: > > "The DBL is both a domain URI Blocklist and RHSBL. It is intended primarily > for message body URI checks but it can additionally be used for connection > checks at the SMTP level and header domain checks (HELO, connecting IP rDNS > domain, From & Reply-To domains, Message-ID domain) and other checks > involving domains."
Oh wow :) > So, can I use the following to reject connections whose A record is in the > Spamhaus DBL? Does this also query for the domain in the PTR/FQrDNS record? > > smtpd_client_restrictions = > ... > reject_rhsbl_client dbl.spamhaus.org > ... reject_rhsbl_client dbl.spamhaus.org reject_rhsbl_sender dbl.spamhaus.org etc. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
