>A have the folowing settings in "SMTP Security"
>
>Refuse NULL senders
This could cause it. That setting refuses any mail sent from "<>", which
means all bounce messages, delivery status notifications, etc. It's very
likely that the externally forwarded E-mails use "<>". I wouldn't expect
that they would get caught using the SMTP Security settings (since I would
expect them to be delivered by SMTP32.EXE, not through the SMTP daemon),
but it could account for your problem.
-Scott
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