First the question: What does the "long-lines=" header keyword do?  The
manual says it defaults to Yes, enabling support, but doesn't describe
where these things turn up or how long is long.

Second, the naive wish:  We recently ran into a situation where a
subscribers mail system did drops and retries on a posting because part
of the system enforced the RFC822 (yup... the envelope part, not the
'821 letter part) maximum limit of 1000 characters per line.  It appears
that the RFC's prefer that we support long lines (>1000 bytes with LF),
and allow us to accept them, but forbid us to transmit them.  It would be
nice if there was setting that would send word-processor weenies straight
to... no wait... I meant if setting the "long-lines=No" keyword was
designed to get around this, but I'm guessing that "long" in this context
refers to punch cards.
                                               -Kary