[Dovecot] postfix + SMTP AUTH using DOVECOT AUTH DAEMON

[Ing. Alejandro Rodriguez]

  hi ppl
I'm the new member of the list.
Looking at recent messages look like there is a way to do SMTP AUTH in 
postfix using the Dovecot AUTH daemon. Currently my Dovecot installation 
auth again PAM (local users) and a simple shadow file (for virtual 
users, I plan to move to MYSQL later). I don't want to have different 
databases one for dovecot a one for SASL.

  Where I can found the POSTFIX patch, or better, some kind of helper 
daemon for Postfix.

thx
A