>I looked at some patches, but I couldn't find enough description.
>
>I want to know ;
>* Can we use PostgreSQL to store user data and do authentication?
As I mentioned earlier, you can use Exim (www.exim.org) to do this. It has
a built in PostgreSQL connector, and you can use it's
super-ultra-mega-configurable configuration file to do almost anything you
want. For example, I use Exim to retrieve "virtual" user information (users
without /etc/password info) and then feed it into "maildir" compatible
formats for retrieval by IMAP server software.
>* Can we use PostgreSQL to store all e-mails (Inboxes & Sent Items)
You can do whatever you want, but chances are you will have to write your
own "local delivery" software if you want to do this - although someone
else had a suggestion.
Cheers,
Doug