Hans Ravnaas wrote:
So first off, I'd like to have someone confirm that, based
on my log file below, the email really did successfully leave my
client. I've also looked at a netmon trace of this, and see no
transport issues.

Yes, based on the log, the message was successfully accepted by Comcast.
However, keep in mind, it could have lost its way in many more places than
just Comcast.

I would personally tell the Comcast support person that you have a network
packet trace showing their server accepting the message and that you would
like to speak to a second level support technician if they are not able to
help you with the problem. But, again, it may not be their problem. If you
can readily reproduce the problem (ie, a certain message always disappears)
then they should be able to see the message come and, theoretically, go out.

--
f.h.