Allow silent user account creation for issues submitted by email
We are using Redmine to create issues submitted by email. We wish to provide users with updates on the issues they have created, however we don't want to grant them access to Redmine. That's why we want to create user accounts silently without sending account information back - similarly to what unchecking "Send account information to the user" checkbox in account creation page does (screenshot attached).
We have created a new option for 'unknown_user' setting in email.rake task - 'create_silent' - and added handling of that option in mail_handler.rb.
It would be great if this could be included in Redmine trunk.
Patch file is attached.