Dovecot-lda mysql look ups.

Hallo again.

Dovecot is not doing a look up for the MailDirLoc in the mysql database after postfix hands over the mail to dovecot-lda.

Postfix knows the right location # postmap -q user@domain.net mysql:/etc/postfix/Mail-Mailbox.cf domain.com/user/

But apparently this has not worked as intended since I moved from courier to dovecot some years back.

The minute I change /etc/dovecot/dovecot-sql.conf postfix starts spitting SASL authentication errors.

How can I make Dovecot-LDA query the DB in that file for the delivery location (userdb_mail)?

Grateful for any help :)

Regards

Simon