I've got an OpenBSD 4.2 mail server behind an OpenBSD 4.2 firewall.
Over the past day, I've noticed a lot of "hung" Sendmail processes in
the process list:
sendmail: m2NF4TFL003726
tnf-mta01-75.ebusiness.householdaccount.pgs01.com [137.236.172.75]: DATA
(sendmail)
sendmail: m2NF4whi024039 host4.FrameNetworkz.com [69.64.39.61]: DATA
(sendmail)
sendmail: m2NF50EF028088 host5.FrameNetworkz.com [69.64.39.62]: DATA
(sendmail)
sendmail: m2NF62uq032198 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF620o013768 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF62MF009167 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF63sx013705 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF63fT020736 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF63JS030535 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF63dc012684 lists-outbound.sourceforge.net [66.35.250.225]:
DATA (sendmail)
sendmail: m2NF6oC8001475 mxphxpool58.ebay.com [66.211.161.58]: DATA
(sendmail)
sendmail: m2NF6rZ6020650 123topsender.net [206.191.129.93]: DATA (sendmail)
sendmail: m2NF76gR032529 mxphxpool98.ebay.com [66.211.161.98]: DATA
(sendmail)
I currently have 144 of these, a mix of spam and non-spam. The
confusing part is that most messages still seem to come through fine,
even from the same systems (i.e. SecurityFocus).
There's not much in the logs, all I can see so far is the eventual
disconnect. The IDs listed in the process list (i.e. m2NF76gR032529)
don't show up in the logs.
