[Dovecot] Dovecot proxy and Postfix SASL

[Andreas Kasenides]

Can somebody please verify that currently (v 2.2.9) SMTP AUTH using SASL
from Postfix with Dovecot proxy is still not supported as discussed in 
these threads
(especially the first one)?

http://www.dovecot.org/list/dovecot/2012-August/067977.html
http://www.dovecot.org/list/dovecot/2011-May/059107.html

As I understand it is possible to use saslauthd to do this by using the 
remote
imap option (rimap). Such a facility is important since I am attempting 
to separate the
outward facing servers (dovecot proxy, postfix relay) that have no 
knowledge of user databases
from the backends.

thanx
Andreas