On 30 Aug 2013, at 20:37 , Christopher Trom <chtrom@gmail.com> wrote:

As a user of the system, am I supposed to authenticate myself to Postfix,

No. Postfix has no authentication methods on its own.

<http://www.postfix.org/SASL_README.html>

Dovecot, both individually, or both together? My Postfix users are stored in a PostgreSQL database, should Dovecot also be connected to this db?

Yes.

Some basic pointers on how this setup ought to look is all that I'm hoping for.

# Certs ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem

# Dovecot 2.x # For postfix to talk to:

service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } }

# allow IMAP only protocols = imap

# For IMAP users to get their mail

service imap-login { inet_listener imaps { port = 993 ssl = yes } }

# For SQL users to authenticate # Note that UID and GID and mail_location are for MY system # if all your users are in sql, you can get mail_location from # the database

userdb { args = /etc/dovecot/dovecot-sql.conf.ext default_fields = uid=vpopmail gid=vchkpw mail_location=/usr/local/virtual/%u driver = sql }

-- 'Ah... I see that the new traffic division is having the desired effect.' He indicated a large pile of paper. 'I am getting any amount of complaints from the Carters' and Drovers' Guild. Well done. Do pass on my thanks to Sergeant Colon and his team.' 'I will, sir.' 'I see in one day they clamped seventeen carts, ten horses, eighteen oxen and one duck.' 'It was parked illegally, sir.'