[Dovecot] auth-master socket access

[Jakob Hirsch]

Lieven Van Acker wrote:

> Is there any solution to the /var/run/dovecot/auth-master access
> restrictions, prohibiting the user running dovecot-deliver from
> communicating with the master (aside from the dirty and unsafe hack to
> reset the permissions of the /var/run/dovecot dir after starting dovecot)?

RTFWiki: Put the auth-master socket into another directory and write
this path into dovecot-lda.conf.

Setting suid on the deliver binary should also help, but it does not
work and it seems to me that it's not designed for such usage.