Lyndon Nerenberg wrote:
> The IMAP4 specification is quite clear on this.
>
> The text after "* OK" in the greeting is freeform (other than any
> <resp_text_code> elements). The appearance of "IMAP4" or "IMAP4rev1"
> there is meaningless when determining which version of IMAP4 is
> supported.
According to last draft for IMAP server is allowed to return the folloing:
* OK [CAPABILITY IMAP4 IMAP4rev1 <other capabilities>]<hostname> Cyrus
IMAP4 <version> server ready
I.e., server banner MAY include CAPABILITY response code. Client that
recognize untagged response in a banner will not issue CAPABILITY.
Alexey