What could possibly explain this weird behavior of email delivery?
Someone sent me an email message on February 16. I didn't received it neither immediately nor in the next days.
Then, out of the blue, EXACTLY 1 MONTH LATER (on March 16), I receive the message that he told me he sent on February 16.
I have seen bounced emails, I have seen lost emails, but I have never seen emails that get delivered exactly 1 month later.
Assuming that that guy indeed clicked the 'Send' button on February 16, what could possibly explain delivering it on March 16?
To help solve this mystery, I am quoting the header below (identifying details changed to protect privacy):
From - Wed Mar 16 14:55:21 2011 X-Account-Key: account3 X-UIDL: UID1720-1259701283 X-Mozilla-Status: 0003 X-Mozilla-Status2: 00000000 X-Mozilla-Keys: Return-path: <email@example.com> Envelope-to: firstname.lastname@example.org Delivery-date: Wed, 16 Mar 2011 13:18:14 -0500 Received: from smtpauth23.prod.mesa1.secureserver.net ([188.8.131.52]:52866) by server521.webhost.com with smtp (Exim 4.69) (envelope-from <email@example.com>) id 1Q0H08-0004ke-5M for firstname.lastname@example.org; Wed, 16 Mar 2011 13:18:14 -0500 Received: (qmail 9698 invoked from network); 16 Mar 2011 17:28:43 -0000 Received: from unknown (184.108.40.206) by smtpauth23.prod.mesa1.secureserver.net (220.127.116.11) with ESMTP; 16 Mar 2011 17:28:42 -0000 From: "Alan Doe" <email@example.com> To: "My Co" <firstname.lastname@example.org> Subject: Confidentiality Agreement Date: Wed, 16 Mar 2011 13:18:10 -0400 Message-ID: <email@example.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01CBE4A7.3BCF3DE0" X-Mailer: Microsoft Outlook 14.0 Thread-Index: AbvPQ9BP9rTIPgVpRWqahWXuOLXz9g== Content-Language: en-us X-Spam-Status: No, score=0.3 X-Spam-Score: 3 X-Spam-Bar: / X-Spam-Flag: NO This is a multipart message in MIME format. ------=_NextPart_000_0001_01CBE4A7.3BCF3DE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit