On Tue, 2003-01-28 at 00:22, Mark Crispin wrote: > "What should the client do if the server fails to return an untagged FETCH > response from STORE"? .. > Nevertheless, since the server should have sent the untagged FETCH > response, a cautious client would assume that the state of the flags is > undefined until such time as it receives an untagged FETCH."
I'm not sure of other server implementations, but I'd think it usually means that the message has been expunged but client hasn't yet been notified about that (RFC2180). But then again, maybe it was just some temporary error.
