I've been able to make SPF pass on all the sent emails from my Postfix server. But for forwarded domains which simply redirect email to my gmail id I see softfail in the SPF.
For example if I send email from a hotmail account to email@example.com then it is forwarded to test email id firstname.lastname@example.org.
I've added SPF header "spf1 a mx -all" for my hostname(host.tariffplans.com) as well for all domains. The A record of all domains/subdomains is correctly pointing to my server IP : 126.96.36.199
But in the forwarded email header .. Google shows it as softfail. What could be the problem?:
Delivered-To: email@example.com Received: by 10.114.96.70 with SMTP id dq6csp51447ldb; Sat, 19 Jul 2014 23:05:03 -0700 (PDT) X-Received: by 10.182.65.66 with SMTP id v2mr22896624obs.74.1405836302184; Sat, 19 Jul 2014 23:05:02 -0700 (PDT) Return-Path: Received: from host.tariffplans.com (tariffplans.com. [188.8.131.52]) by mx.google.com with ESMTPS id js4si25593503obc.98.2014.07.19.23.05.01 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 19 Jul 2014 23:05:02 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning firstname.lastname@example.org does not designate 184.108.40.206 as permitted sender) client-ip=220.127.116.11; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning email@example.com does not designate 18.104.22.168 as permitted sender) firstname.lastname@example.org Received: from BLU004-OMC4S20.hotmail.com (blu004-omc4s20.hotmail.com [22.214.171.124]) (using TLSv1.2 with cipher AES128-SHA256 (128/128 bits)) (No client certificate requested) by host.tariffplans.com (Postfix) with ESMTPS id 668E01E1619 for ; Sun, 20 Jul 2014 11:35:01 +0530 (IST) Received: from BLU181-W79 ([126.96.36.199]) by BLU004-OMC4S20.hotmail.com with Microsoft SMTPSVC(7.5.7601.22712); Sat, 19 Jul 2014 23:05:01 -0700 X-TMN: [mcaEHqstvkaYJBg7Y5zPleq+hEPF4BC7] X-Originating-Email: [email@example.com] Message-ID: Content-Type: multipart/alternative; boundary="_dfcd1b0c-5d39-4204-a29c-16fb51556946_" From: Bhasker Yamsani To: "firstname.lastname@example.org" Subject: testing Date: Sun, 20 Jul 2014 02:05:00 -0400 Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 20 Jul 2014 06:05:01.0018 (UTC) FILETIME=[8A96E3A0:01CFA3E0]