Some mail seems to get stuck

["Barton L. Phillips" <ba...@applitec.com>]

I get a number of these every day. All from 63.86.185.xx. They seem to 
hang sendmail for a long time. If I do a 'ps ax' these things are sleeping
'22298 ?        S      0:00 sendmail: k1FL11sL022298 
mm.highercashflownetworknow.info [63.86.185.88]: DATA'
and sometimes sit around for 20 to 30 minutes (maybe longer).

I am running 'mimedefang' with Spam Assassin and see the entries in the 
/var/spool/MIMEDefang/xxx sub-directory with a COMMAND and HEADER file 
there. The sub-directories don't ever seem to get cleaned up automatically.

Any one have any ideas. I have added a DROP rule to my iptables for this 
subnet 63.86.185.0/24 but I would like to understand the situation a 
little better. If you think this is a mimedefang issue I can post there 
instead.
Thanks.

Feb 15 12:29:56 bartonphillips sendmail[20778]: k1FJTtsK020778: timeout 
waiting for input from mm.dreamdeals-networknow.info during message collect
Feb 15 12:29:56 bartonphillips sendmail[20778]: k1FJTtsK020778: 
from=<Re...@highercashflowplaces.info>, size=0, class=0, nrcpts=1, 
msgid=<20...@bartonphillips.com>, 
bodytype=8BITMIME, proto=ESMTP, daemon=MTA, 
relay=mm.dreamdeals-networknow.info [63.86.185.82]
Feb 15 12:29:56 bartonphillips sendmail[20778]: k1FJTtsK020778: 
to=<gh...@applitec.com>, delay=01:00:00, pri=30000, stat=timeout 
waiting for input during message collect

-- 
----------------
Barton L. Phillips
Applied Technology Resources, Inc.
Tel: (818)652-9850
Web: http://www.applitec.com