I receive these mysterious emails with no subject, no body, forged yahoo addresses, and forged Message-Id. I receive hundreds of these every day. I've included a sample of about a dozen below (I've replaced my actual domain name with "myserver.com").
Does anyone else receive emails like these? The IP address resolves to China. What could someone be trying to accomplish by sending these?
From [email protected] Sat Apr 25 10:22:26 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEMOVx013935; Sat, 25 Apr 2015 10:22:25 -0400 Date: Sat, 25 Apr 2015 10:22:24 -0400 From: [email protected] Message-Id: Status: RO Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:22:28 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEMOW1013935; Sat, 25 Apr 2015 10:22:27 -0400 Date: Sat, 25 Apr 2015 10:22:27 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:24:27 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEOOxR014269; Sat, 25 Apr 2015 10:24:24 -0400 Date: Sat, 25 Apr 2015 10:24:24 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:25:28 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEPPBp014799; Sat, 25 Apr 2015 10:25:26 -0400 Date: Sat, 25 Apr 2015 10:25:25 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:25:30 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEPPBr014799; Sat, 25 Apr 2015 10:25:29 -0400 Date: Sat, 25 Apr 2015 10:25:29 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:26:53 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEQpF5015268 for ; Sat, 25 Apr 2015 10:26:52 -0400 Date: Sat, 25 Apr 2015 10:26:51 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:28:00 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PERxxY015848 for ; Sat, 25 Apr 2015 10:28:00 -0400 Date: Sat, 25 Apr 2015 10:27:59 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:34:33 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEYVKv017946; Sat, 25 Apr 2015 10:34:31 -0400 Date: Sat, 25 Apr 2015 10:34:31 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:37:30 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEbS3S019367; Sat, 25 Apr 2015 10:37:29 -0400 Date: Sat, 25 Apr 2015 10:37:28 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 10:50:54 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PEoqMW023362; Sat, 25 Apr 2015 10:50:53 -0400 Date: Sat, 25 Apr 2015 10:50:52 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 11:00:47 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PF0k6d026108; Sat, 25 Apr 2015 11:00:46 -0400 Date: Sat, 25 Apr 2015 11:00:46 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0 From [email protected] Sat Apr 25 11:09:10 2015 Received: from 14.106.165.177 ([14.106.165.177]) by myserver.com (8.13.8/8.13.8) with SMTP id t3PF98Cm028275; Sat, 25 Apr 2015 11:09:09 -0400 Date: Sat, 25 Apr 2015 11:09:08 -0400 From: [email protected] Message-Id: Content-Length: 0 Lines: 0
HELO
andRCPT
commands. That information is needed in order to fully understand the pattern. But even with that information, we cannot tell you what is going on inside the mind of the sender of those emails.