No, this seems to be a bug in UKA_PPPs address parsing (if you're still
talking about it).
The SMTP gateway does (almost) nothing with the message text (including
header). The SMTP client has to transmit the envelope data
(the source and destination) explicitly to the gateway. Protocol is
something like that (this is what e.g. UKA_PPP sends to the gateway):
HELO <myhostname>
MAIL FROM:<myname>
RCPT TO:<dst1>
RCPT TO:<dst2>
:
DATA
<your message _including_ message header>
.
QUIT
This also explains how one can receive SPAM without being mentioned in
the addresses list.
To solve your problem, I'd recommend upgrading to a newer version of
UKA_PPP, if this does not help send a bug report to Karl-Heinz Weiss
(except this bug is mentioned in his current bug list).
Hardy
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