imaplib fetch message flags

[Lawrence D'Oliveiro]

In message <mailman.1028.1235967423.11746.python-list at python.org>, Gabriel 
Genellina wrote:

> RFC1730 <http://www.faqs.org/rfcs/rfc1730.html> defines IMAP4 and isn't
> hard to read.

This <http://www.courier-mta.org/fud/> may also be worth reading.