I am using the reply by email and it is working but I have found the following issue:
Scenario:
As a ticket manager, I create a ticket on behalf of another user from the frontend.
Issue:
If I am still logged in to the frontend or the backend as the ticket manager, any reply post received by the user is posted as ticket manager and not the user.
However if I am not logged into the frontend or backend, reply posts are posted correctly as the user.
Not sure if this is the default behaviour.
Thanks
Patrick