Username aliases

[Aki Tuomi]

On 25.09.2018 16:24, Eirik Rye wrote:
> Hi,
>
> Our organization is currently using a passwd-file user database for
> our Dovecot installs. However, we now want to provide simple username
> aliases.
>
> We currently use usernames that are -not- equal to the email address,
> but due to the fact that many major email clients/providers do not
> even allow you to specifiy a username, we now want to provide aliases
> where the username is equal to the email address.
>
> A simple solution would be to duplicate the lines in the passwd-file,
> with the email address as the username, but this does not seem be
> ideal due to data duplication.
>
> Ideally, there would be a secondary 'alias' userdb, which on a match
> would then restart the search in the primary passwd-file userdb using
> the new username. Is this possible?
>
> What would be the best way to go about this?

# before current passbd
passdb {
  driver = passwd-file
  args = username_format=%Lu /etc/dovecot/aliases
}

# into /etc/dovecot/aliases
alias at user:::::::user=real_username noauthenticate

This hopefully works.

Aki