I have a server with Debian 6 (Squeeze), running Postfix, Dovecot, and using MySQL as the backing store for virtual email accounts.
For my domain example.com
, I have a ‘catch-all’ @example.com
that forwards to [email protected]
.
I want to allow an authenticated user to log in as [email protected]
to use SMTP (and thus take advantage of SPF validation and DKIM signing), but not allow Postfix to deliver mail sent to [email protected]
to Dovecot. Configuring a ‘full’ account in the MySQL database causes this to happen, so far as I can tell.
How can I do this? Am I approaching this in the wrong way?