Hi,

Currently, Dovecot Submission doesn't forward NAME attribute when XCLIENT is enable:

Received: from server.example.org (localhost [1.2.3.4]) (Authenticated sender: test@example.org) by localhost (Postfix) with ESMTPA id AAAAAAAAAA for <user@domain.com>; Fri, 8 Mar 2019 12:28:02

Postfix adds a header with the sender IP address (1.2.3.4), but with localhost as hostname.

It would be great if Dovecot Submission send NAME attribute, with the resolved hostname of the sender IP (ADDR attribute).

Thank you!

-- Marcelo Coelho