Delivery Failure

Delivery Failure : 451 DKIM Signature

From: System Administrator Sent: Thursday, March 26, 2015 2:55 PM To: user@domain-name.com...

Delivery Failure : 550 5.7.0 Message Size

From: System Administrator Sent: Wednesday, August 26, 2015 3:35 PM To: user@domain-name.com...

Delivery Failure : 550 DomainKeys requirements

From: System Administrator Sent: Monday, July 6, 2015 11:20 AM To: user@domain-name.com...

Delivery Failure : 550 unknown user

From: System Administrator To: user@domain-name.com Sent: Monday, August 17, 2015 10:26 AM...

Delivery Failure : 554 5.7.1

From: System Administrator Sent: Friday, June 5, 2015 2:32 PM To: user@domain-name.com...

Delivery Failure : 554 Rejected by DKIM

From: System Administrator Sent: Friday, January 23, 2015 1:52 PM To: user@domain-name.com...

Delivery Failure : 554 rejected

From: System Administrator Sent: Monday, August 3, 2015 2:19 PM To: user@domain-name.com...

Delivery Failure : DKIM

From: System Administrator Sent: 7 กรกฎาคม 2558 10:14 To: user@domain-name.com Subject:...

Delivery Failure : Failed to connect

From: System Administrator Sent: Friday, March 20, 2015 10:34 AM To: user@domain-name.com...

Delivery Status Notification : 550 Authentication

From: Mail Delivery System Sent: Thursday, December 04, 2014 1:04 PM To:...

Delivery Status Notification : mailbox is full

From: postmaster@hotmail.com Date: Wed, Apr 1, 2015 at 3:37 PM Subject: Delivery Status...

Mail failure : no recipient addresses

From: Mail Delivery System Sent: 11 พฤษภาคม 2558 22:16 To: nobody@domain-name.com Subject:...