Thanks for the quick reply. I am working on getting a second level support
person engaged. I don't know what kind of mail servers they are using, but
I'm hoping they are able to look at server logs to first determine if the
message was received by their servers or not. I'm wondering if some server
mail filter is deleting the messages? I can't repro the problem at will and
it happens with random messages, but I can usually repro it with a couple
emails per day. Again, I still suspect Comcast, because when an email gets
lost, 100% of the recipients do not receive it. I would really like to find
out once and for all if the message really leave their server. I suspect
not. Come to think of it, I should also point out that if I'm on the to or
cc line of the problematic message, I don't even get it, even though it was
sent to myself. I believe this eliminates other devices between the Comcast
servers and the recipients.

Hans

"F.H. Muffman" wrote in message
...
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.