<p>In the few years since MAPS started operating, other similar services although with different aims, procedures and reliabilities have been introduced - MAPS itself has a number of these (ie MAPS/DUL which maintains lists of dial up modems). At this point in time there are many 10s of services with varying charters - lists of these can be found at <a href="http://relays.osirusoft.com/">http://relays.osirusoft.com/</a> and <a href="http://spamblock.outblaze.com/spamchk.html">http://spamblock.outblaze.com/spamchk.html</a>. The services are now normally referred to as a DNS Block List (DNSBL), rather than RBLs, however you will find that earlier Exim documentation (ie for version 3.x) will use the older term.</p>
<p>In the few years since MAPS started operating, other similar services although with different aims, procedures and reliabilities have been introduced - MAPS itself has a number of these (ie MAPS/DUL which maintains lists of dial up modems). At this point in time there are many 10s of services with varying charters - lists of these can be found at <a href="http://relays.osirusoft.com/">http://relays.osirusoft.com/</a> and <a href="http://spamblock.outblaze.com/spamchk.html">http://spamblock.outblaze.com/spamchk.html</a>. The services are now normally referred to as a DNS Block List (DNSBL), rather than RBLs, however you will find that earlier Exim documentation (ie for version 3.x) will use the older term.</p>