Re: POP/fancy-split bug?

[Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann)]

Norman Walsh <ndw@nwalsh.com> writes:

> But now that I'm using POP, I've noticed that I sometimes get a
> completely empty message in the "approval" folder and the
> unapproved message in the "list" folder, as if it had been
> approved. I haven't been able to nail down what's different
> between messages that succeed and messages that fail, but most
> seem to fail.

Depending on how you fetch mail, the output of the fetching process
may be a babyl file (default with movemail.c) or an mbox file (can
happen with pop3.el but don't know if that always happens).  If it is
an mbox file, a message is considered to start with a From_ line and
ends with an empty line.

The unapproved message starts with a From_ line, hence it is
conceivable that this From_ line is considered start of a message.
But why does this not always happen?  Well, I think Gnus also looks at
the Content-Length (maybe also Lines) header.  Gnus then moves forward
that many bytes or lines to see if a new message begins there.  If so,
the header information is considered to be correct.  If, however,
there is no From_ line after the number of bytes/lines given by
Content-Length, Gnus reverts to searching for From_ lines for
beginnings of messages.

Maybe everything works if the Content-Length header is good, and the
message is split in two if the Content-Length header is wrong?

kai
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