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Daniel Bernstein's manual page for the rblsmtpd program.

Daniel Bernstein's manual page for the rbldns program.

The Multi-RBL check page, lists a number of RBLs, with a web interface to check if a specific IP address is included among them.

Other RBLs

Here are just a few publicly available, free or donation-supported, RBL resources at the time of this writing (fall 2004):

RBL Service Information RBL basename
SPEWS none publicly available;
see S0RBS below
S0RBS many, including:

Chris Wilkes' has this great HOWTO document for setting up your own rbldns service.

Copyright © 2003, 2004, Wayne Marshall.
All rights reserved.

Last edit 2004.09.27, wcm.