[Imap-protocol] updated table of IMAP client capabilities

[Bill Janssen]

> Yes:	STARTTLS, SASL (GSSAPI, CRAM-MD5, PLAIN, LOGIN, EXTERNAL),

>  	SSL, NAMESPACE, MULTIAPPEND, UIDPLUS, CHILDREN, SORT, THREAD

> 

> No:	SASL-IR, ESEARCH, IDLE, LITERAL+, LEMONADE

>  	;;; For the purposes of Pine/Alpine:

>  	;;;

>  	;;; SASL-IR adds complexity just to save one RTT.  We have

>  	;;;	enough problems with servers getting SASL right as it is.

>  	;;; ESEARCH has no constituency within our user community.

>  	;;; IDLE is unnecessary except for mobile devices, and has

>  	;;;	problems when NAT is in use.

>  	;;; LITERAL+ is not needed since MULTIAPPEND is used instead,

>  	;;;	and MULTIAPPEND solves problems that LITERAL+ does not.

>  	;;; LEMONADE support is under consideration.

> 


Thanks, I've updated the table.


> UW imapd implements all of the above except for LEMONADE.  LEMONADE 

> support is under consideration.


It would be interesting to do another table for servers, I suppose.

Bill