[Imap-protocol] what does UIDNOTSTICKY really mean?

[Arnt Gulbrandsen]

Bill Janssen writes:
> My system will persist UIDs until the the server is re-booted for some 
> reason; that is, UIDVALIDITY may be different each time a mailbox is 
> selected, though it's not likely to be. Depends on the frequency of 
> selection. So UIDs tend to be persistent, but are not guaranteed to 
> be.
>
> Should I send UIDNOTSTICKY, or not?

IMO you should not. UIDNOTSTICKY is a hint to clients that caching is 
pointless, and in your case caching is useful (although not 100% 
useful).

Arnt