dovecot - Oct 2005 - Usernames and Passwords for Virtual Users Request

A feature I think would be nice.

When a single IP hosts email for multiple domains the solution is usually to 
use the complete email address as the username.  I have users that have 
migrated from Cobalt RAQ's which do not work like that.

If a user trys to authenticate with just there username such as "joeb"
instead of joeb at dirt.com I would like Dovecot to check all the domains it 
hosts and if it only finds one with the username "joeb" assume thats
the
one.  If multiple domains have the username "joeb" refuse to
authenticate
without the "@domain" part.

Perhaps this is not possible.  Sure would be handy though.  Oh, it would 
also be nice to automatically lowercase all usernames before authentication.

Matt

Matt wrote:
> If a user trys to authenticate with just there username such as
"joeb"
> instead of joeb at dirt.com I would like Dovecot to check all the domains
> it hosts and if it only finds one with the username "joeb" assume
thats
Sadly, you told nothing about how you store your user data.
I simply presume it's in some sql database.

I had the same problem when we converted from system users to
user at domain logins. So I stored the system users that where used for
mail in a separate column in the users table and used a query like

SELECT ... WHERE (user='%n' AND domain='%d') OR
old_login='%u'

This will even work with multiple domains having the same username.
> also be nice to automatically lowercase all usernames before
> authentication.
Use the substitution modifiers, e.g. %Lu