imap authentication - shadow vs mysql

[Ralph Seichter]

* Konra Wawryn:

> I`m searching for some solution which will help me to scale my system
> in the future.

You provided very little information about your requirements, and "to
scale" is just as vague a term. Hence, I recommend an LDAP server,
because it works in many scenarios, can accommodate thousands of users,
and is basically the default solution for this type of write-seldom-
read-often type of user data storage.

As for MySQL, I would personally not use it for authentication unless I
had no other option.

-Ralph