Reporting-MTA: dns;smtp.schemeserve.com Received-From-MTA: dns;smtp.schemeserve.com Arrival-Date: Tue, 16 Aug 2016 17:19:57 +0100 Final-Recipient: rfc822;william@pjmcilroy.co.uk Action: failed Status: 5.5.0 Diagnostic-Code: smtp;550-Your sending server IP Address must have Reverse DNS for us to accept the 550 mail