When sending an e-mail from my mailcow instance the initial
Received header always looks like this:
Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPA id [ID] for <[DEST]>
I expected something with a bit less
localhost and a bit more
MAILCOW_HOSTNAME. I have seen some anti-spam services flagging this header as being spammy. Is there a way to change (part of) this header to better reflect the actual hostname of the mailcow instance?