I occasionally receive a message from Mercury that only contains the following two lines:
Received: from spooler by localdomain.com (Mercury/32 v4.80.149); 21 May 2018 08:03:24 -0400
X-Envelope-To: sales@localdomain.com
Anyone know what causes this?
I thought I had posted this inquiry a couple of days ago but never saw it on the forum so my apology if it ends up being a duplicate.