how to treat synonymous domain names as one

[Steffen Kaiser]

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On Wed, 7 Oct 2015, Nikolai Krot wrote:

> I am curious if there is a way to rewrite domain name to another domain
> name. My goal is to provide authentication and mailboxes for the synonymous
> domains in a single source while keeping all other domains separate.
>
> I have setup:
>
>    auth_username_format = %Lu
>    mail_location = /var/vmail/%d/%u/Maildir
>
>    in userdb/passdb (passwd-file):
>    /etc/dovecot/%d/users
>
> Say I have two synonymous domain names
>
>  my-domain-1.com
>  my-long-named-domain-1.com

symlink the passdb of both domains together, as well as the userdb files. 
If you use the same file for both passdb and userdb, symlink just this 
single file. Then add the "user" ExtraField to all users in passdb and 
userdb. E.g. for user XYZ add user=XYZ at my-domain-1.com

see:
http://wiki2.dovecot.org/AuthDatabase/PasswdFile

>
>  I want both to resolve to my-domain-1.com when %d variable is used in
> Dovecot configs, so that
>
>  passwd-file is /etc/dovecot/my-domain-1.com/users
>  mailbox is /var/vmail/my-domain-1.com/user/Maildir
>
> while keeping other domains unchanged
>
>  my-other-domain-2.com
>
> should resolve to:
>
>  passwd-file is /etc/dovecot/my-other-domain-2.com/users
>  mailbox is /var/vmail/my-other-domain-2.com/user/Maildir
>
> thanks,
> Nikolai
>

- -- 
Steffen Kaiser
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