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rbldns

In addition to relying on 3rd-party realtime blackhole lists (RBLs), you can also create your own RBL lists. You can blacklist IP addresses that aren't on other lists and you can also whitelist addresses that want to receive mail from, even if they happen to be on a blacklist.

In addition to relying on 3rd-party realtime blackhole lists (RBLs), you can also create your own RBL lists. You can blacklist IP addresses that aren't on other lists and you can also whitelist addresses that want to receive mail from, even if they happen to be on a blacklist.

Instructions here are adapted from http://www.antagonism.org/mail/rbldns-qmail.shtml and http://ladro.com/docs/dns/rblsmtpd.html

Blacklist
Firstly, we'll create a user for our RBL to run under. Probably don't need this step if we ran rbldns as the dnscache user (dnsrun)

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