mystery "Incoming*" files

[Per Bothner <per@bothner.com>]

I am ending up with a ton of files named things like Incoming00DsZR
in my ~/Mail directly.  This is making me nervous.  It looks like
most (maybe all) of this is old mail (i.e.mail I've seen).  If so,
why is it sitting there?  I'd like to delete it all.  However, I
do seem to have lost some mail, and I find some messages I don't
think I've seen.  This is making me *very* nervous.

Most of my mail is delivered by a direct IP connection, but some
is directed via pop.  Thus I have two mail sources:
        (setq mail-sources '((file) (pop :server "postoffice.pacbell.net")))

Sometimes the pop server hangs.  Somestimes it will hang, and
ask "mail source error - continue? (yes/no)".  This is *not*
a very helpful question!  Sometimes I give up and ctrl-G.  In such
cases I seem to have lost messages that arrived directly.  I.e. xbiff
(actually the Gnome equivalent) will show some messages waiting
in the spool area;  that count will go to zero, but these message will
not show up in the mail folders, even after I restart xemacs.

I assume I can reduce this problem by using fetchmail to get the
pop mail, which should eliminate the hangs.  Still, this is quite
scary.

But maybe I'm getting what I deserve, for using old alpha snapsots
of both gnus (pgnus 0.84) and xemacs (21.2 from May)?  Should I
upgrade to a newer version, or go to a stable released version?

If there were a utility that scanned through old Incoming*
files, deleted the duplicates, and incorporated anything
truly new, that would help.  Is there?
-- 
	--Per Bothner
per@bothner.com   http://www.bothner.com/~per/