theory you should get a new UID for that message. But maybe our "internal"
IMAP implementation wouldn't care. I do wonder how UW-IMAP deals with
that, since it claims to be able to serve up MH folders via IMAP
- The grammar for IMAP is well-defined and pretty compact; I believe you'd
be able to minimize the client/server I/O. I don't think a parser would
be terrible for it.
- AFAICT, pick(1) is implementable completely via the "vanilla" IMAP
protocol, but if I'm wrong I'd be interested in knowing about it.
--Ken