[Imap-protocol] FETCH (rfc822) response

[Rick Sanders]

I'm working with a server whose response to a FETCH (rfc822) is 
different than I have seen before.

 >> 1 FETCH 1 (rfc822)
<< * 1 EXISTS
<< * 1 FETCH (RFC822[] {0}

I'm used to seeing something like * 1 FETCH (RFC822 {1522}.  In this 
case I have to send a separate 1 FETCH 1 (rfc822.size) command to get 
the message size:   << 1 FETCH (rfc822.size 5149).

Just curious, is this compliant?

-Rick