There is some ambiguity in the setting names, however:

In the "upper" authentication config file (possibly conf.d/auth-sql.conf.ext) you define which "internal" driver the authentication system will use. These are...more of a top-level engine selection if you will - perhaps not what you'd consider a "true" driver.

In the "lower" authentication config file (like dovecot-sql.conf.ext), which is referenced by the 'args' setting in the userdb & passdb sections of the "upper" file, is where you explicitly specific the "true" driver, the actual database, and any field mappings.

If you're just getting things setup I suggest you check out:

http://postfixadmin.sourceforge.net/

Very clean & simple admin GUI for mail services. It includes documentation for setting up Dovecot.

Daniel


On 11/8/2019 11:12 PM, Aki Tuomi via dovecot wrote:

On 09/11/2019 05:44 Ken Wright via dovecot <[email protected]> wrote:

On 11/8/19 3:40 PM, Alexander Dalloz via dovecot wrote:
Am 08.11.2019 um 21:23 schrieb Ken Wright via dovecot:

On 11/8/19 3:14 PM, @lbutlr via dovecot wrote:
On 08 Nov 2019, at 11:56, Ken Wright <[email protected]> wrote:
Nov  8 13:28:53 grace dovecot: auth: Fatal: Unknown passdb driver ‘
You do not have Dovecot compiled with support for mysql'

But the dovecot-mysql package is installed!  Why can't it see that?


The driver is called "sql". See

https://doc.dovecot.org/configuration_manual/authentication/sql/

Alexander

Are you sure?  I looked at that page, and it says there are different
drivers for MySQL and PostgreSQL:  mysql and pgsql respectively.  I also
checked dovecot.conf, and there the driver is called "sql."

Ken

SQL is the **authentication** database, which has mysql **driver**. So in 
dovecot.conf you use sql, and in the config file for the sql authentication, 
you specify the driver. See 
https://github.com/dovecot/core/blob/master/doc/example-config/dovecot-sql.conf.ext#L32

Aki


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