I got the following note (selectively quoted) a couple of days back.
If you are using MAPS RBL lists then you may wish to modify your
configuration.
I'll update the HOWTO on the web site as and when I get time
> Some time ago, we migrated rbl.maps.vix.com and dul.maps.vix.com to
> new zones on the mail-abuse.org domain. By April 30, 2001,
> maps.vix.com will cease to exist.
> We are notifying the developers of software known to be compatible
> with the MAPS lists to ask that they change the appropriate
> documentation to reflect the correct names:
RBL = blackholes.mail-abuse.org
RSS = relays.mail-abuse.org
DUL = dialups.mail-abuse.org
RBL+ = rbl-plus.mail.abuse.org
> If this will create any additional problems with the software that we
> are unaware of, please let us know ASAP.
> Thank you for your support and cooperation.
--
[ Nigel Metheringham Nigel.Metheringham@??? ]
[ Phone: +44 1423 850000 Fax +44 1423 858866 ]
[ - Comments in this message are my own and not ITO opinion/policy - ]