John W. Lemons III <[EMAIL PROTECTED]> wrote:
> When a user BCCs a list of people, their message gets delivered to all but
> one of the people on the list.  Their mail server bounces it.  Apparently,
> tech support for their mail server claims that the envelope is invalid
> because it doesn't contain an X-Recipient header.

The people you're talking to aren't compentent to run a mail server.  The
SMTP envelope doesn't contain any 'headers' -- those are part of the message,
not the envelope.  The envelope contains exactly two things, a sender and
a recipient (specified with MAIL FROM: and RCPT TO:).  Their mail system should
be delivering based on the contents of the RCPT TO: and _nothing else_.

Besides, when talking about mail headers, I thought X- was essentially a way
of saying explicityly that a header is non-standard.

Charles
-- 
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Charles Cazabon                           <[EMAIL PROTECTED]>
QCC Communications Corporation                   Saskatoon, SK
My opinions do not necessarily represent those of my employer.
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