How do I manage custom flags for IMAP messages. I want to be able to set "\Forwarded", "\ReplyToAll", etc on a message and be able to see them using c-client.
You can not use "\Forwarded" or "\ReplyToAll".
You can, however, use "Forwarded" and "ReplyToAll". These are keyword flags, and work just like other flags.
All flags which start with \ are reserved to the IMAP protocol for definition and are not available for user definition.
-- Mark --
http://staff.washington.edu/mrc Science does not emerge from voting, party politics, or public debate. Si vis pacem, para bellum.