Re: UID for IMAP Channel?

> > When Notification scenarios are considered, it may be that the client gets
> > some indication about a specific message for which it then issues a CHANNEL
> > command (i.e, the client did not necessarily received all sequence numbers
> > in the mailbox before issuing the CHANNEL command, so it can't map between
> > UID and sequence number). 

IMAP has no "notification scenarios" as this describes.  It's a common
misconception that UIDs have an equivalence map to IMAP sequence
numbers. There are no asynchronous events that map between the two. A
client that issues an IMAP CHANNEL request simply asks the server to
perform a task on its behalf. The server itself decides if the request
is valid, let alone if it is a reasonable idea.

--lyndon