Prerequisites

• I have searched for duplicate or closed feature requests
• I have searched for plugins that provide already provide the feature

Proposal

As operator of Dovecot and Roundcube, I want to be able to use runtime interpolation in password_dovecot_passwdfile_path, so I can utilize Dovecot's feature of Multiple passwd-files.

Motivation and context

Dovecot has a feature to use Multiple passwd-files - the documentation includes an example for one file per email domain, but this way Dovecot may support even a file per user.