I just received this email (in relevant part):
From: Meta <firstname.lastname@example.org>
To: MarkTraceur (WMF) <email@example.com>
Subject: Your user rights have changed on Meta
My mail client did not display the (WMF) to me in the human-readable view, because that syntax designates a comment. It should be made clear in the message body which account is being acted on, because I was convinced at first that my account had been tampered with, as [[:m:User:MarkTraceur]] has a very different mailing address.