I've checked my email headers at http://mxtoolbox.com which says it is ok. But I'm not sure.
MY server's FQDN is host.tariffplansindia.com and for my server's IP( 220.127.116.11) the reverse PTR record resolves to tariffplansindia.com.
But all my emails have server name as host.tariffplansindia.com.
Do 18.104.22.168's reverse PTR need to resolve to host.tariffplansindia.com or is it ok with set currently(tariffplansindia.com )
Delivered-To: firstname.lastname@example.org Received: by 10.114.81.66 with SMTP id y2csp615139ldx; Mon, 17 Nov 2014 18:25:05 -0800 (PST) X-Received: by 10.182.215.136 with SMTP id oi8mr27687082obc.18.1416277503115; Mon, 17 Nov 2014 18:25:03 -0800 (PST) Return-Path: Received: from host.tariffplansindia.com (tariffplansindia.com. [2600:3c00::f03c:91ff:fe73:2b08]) by mx.google.com with ESMTPS id q10si41713064obk.50.2014.11.17.18.25.02 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 17 Nov 2014 18:25:02 -0800 (PST) Received-SPF: pass (google.com: domain of email@example.com designates 2600:3c00::f03c:91ff:fe73:2b08 as permitted sender) client-ip=2600:3c00::f03c:91ff:fe73:2b08; Authentication-Results: mx.google.com; spf=pass (google.com: domain of firstname.lastname@example.org designates 2600:3c00::f03c:91ff:fe73:2b08 as permitted sender) email@example.com Received: by host.tariffplansindia.com (Postfix, from userid 1000) id BA43713534; Tue, 18 Nov 2014 07:55:01 +0530 (IST) To: firstname.lastname@example.org Subject: Content indianworkingwoman.org changed X-PHP-Originating-Script: 1000:checkforum.php Message-Id: Date: Tue, 18 Nov 2014 07:55:01 +0530 (IST) From: email@example.com (AccountA)