Rbl-milter extends the capability of sendmail to add an X-RBL-Warning to email messages that originate from open relays without having to write new m4 macros yourself. With this milter, an admin can have messages tagged that come from open relays and allow their users to do filtering on their own. Rbl-milter also has the capability to check connections against multiple RBL lists.
Release Notes: A new ability to check IP addresses in Received: headers as well as those of the connecting host, basic syslog logging support for tagged hosts, No longer checking RFC 1918 private addresses against the RBL, and support for both little- and big-endian systems.
Release Notes: Fixes for local mail delivery and an ssh hang, updating configure to properly check for res_ninit, and updating code to properly compile with old resolver libraries.
Release Notes: An improper memory release of the host suffix was fixed. The debuging code was cleaned up some more. Milter initialization was moved post fork. Other small cleanups were made.
Release Notes: A new ability to check incoming email against multiple RBLs, autoconf configuration, and a fix for bug when compiling against older resolver libraries.