From: utzoo!decvax!vortex!lauren
Newsgroups: net.news
Title: Internet mailer
Article-I.D.: vortex.31
Posted: Wed Mar  2 14:18:35 1983
Received: Tue Mar  8 06:52:30 1983

I would strongly recommend *against* using Mark's map lists to generate
mail path data.  Mark's data generally only shows NETNEWS distribution
paths, which usually does not represent reasonable/optimal mail paths
in most cases.  Some sites that pass along netnews do not accept/forward
mail, and many sites are at the end of extremely long netnews delivery
paths, but actually have very short possible delivery paths for mail.
Until the distributed map data shows up-to-date listings in the "UUCP"
field as well as in the "Usenet" field, the listings are really unsuitable
for regular use as mail path generators.

--Lauren--