[Dovecot] The submission server

[Peter Mogensen]

Hi,

As many others I'm looking forward to the submission server.
But I have a question:

A use-case with authenticated SMTP is to have the server restrict 
From/Sender headers based on the authenticated user. (and adding the 
actual authenticated user to the headers)
Postfix supports this (AFAICS) and I can't imagine Exims doesn't either 
with it's elaborate config possibilities.

But will that be possible with the Dovecot submission server?

/Peter