We have intermittent problems receiving mail from a particular domain. The mail is received by SMTP but then somehow never delivered.
One of these instances I tracked it down to the following line in the log.nsf file:
07/21/2009 09:49:10 AM SMTP Server: mta2.srv.hcvlny.cv.net (167.206.4.197) disconnected. 1 message[s] received
which is not followed by a Router statement about this message.
Any suggestions?