RBL ZA

ID #1003

For example with Qmail you'll change your qmail-smtpd/run file from
tcpserver 0 smtp /var/qmail/bin/qmail-smtpd
to
tcpserver 0 smtp /usr/local/bin/rblsmtpd -a whitelist.example.com -r blacklist.example.com -r relays.ordb.org /var/qmail/bin/qmail-smtpd

According to the rblsmtpd man page, the -r and -a switches mean:

Switch	If successful, do this
-r	Quit
-a	Don't do other lookups, and continue on

In this case the steps are:
1. Do a lookup against whitelist.example.com, if sucessful then skip the other lookups and go on to accepting the smtp request
2. Do a lookup against blacklist.example.com, if that's successful then quit out printing a "RBL denied" message to the client.
3. Same as #2 but against relays.ordb.org

 

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