Postfix
Postfix has a simple way to test whether a mail server is in ORDB. Simply add the following entry to your main.cf:
maps_rbl_domains = relays.ordb.org
Then add one or more of the following entries: smtpd_client_restrictions = reject_maps_rbl
The smtpd_client_restrictions parameter specifies optional restrictions on SMTP client host names and addresses. The smtpd_helo_restrictions parameter specifies optional restrictions on what SMTP clients can send in SMTP HELO and EHLO commands. The smtpd_sender_restrictions parameter specifies optional restrictions on sender addresses that SMTP clients can send in MAIL FROM commands. The smtpd_recipient_restrictions parameter specifies restrictions on recipient addresses that SMTP clients can send in RCPT TO commands.
More information may be found at Postfix UCE controls page http://www.postfix.org/uce.html.
Additional tips for anti-UCE configuration of Postfix can be found in Jim Seymour's excellent sample configuration.
In postfix 2, all the information is specified in the smtpd_client_restrictions variable, so all you need is this line:
smtpd_client_restrictions = reject_rbl_client relays.ordb.org
也許也是一種方式喔...
這是我今天發現我的ip以前被open relay被紀錄過
才發現有這樣的方式
大家討論看看吧..
