Is SPF record valid?

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I am getting “softfail error” for the current spf record what should i do?

This is the original mail i got from my domain.

I added the spf record in my dns.

v=spf1 mx mx:smtp.secureserver.net include:smtp.secureserver.net ~all

Unfortunately I entered smtp server name in spf record.

Here I am using my domain only for sending purpose.So, I didn’t add any MX records.
In the SPF record my domain has to be passed for the span checking. What are the things i need to focus?

Could you please explain? How should i write the SPF record 

Delivered-To: nava@gridlex.com
Received: by 10.229.150.13 with SMTP id w13csp108400qcv;
    Fri, 18 May 2012 06:05:02 -0700 (PDT)
Received: by 10.224.34.4 with SMTP id j4mr22611239qad.61.1337346302689;
    Fri, 18 May 2012 06:05:02 -0700 (PDT)
Return-Path: <dr@pharma.com>
Received: from ip-10-111-7-139.ec2.internal (ec2-50-16-79-25.compute-1.amazonaws.com.  [50.16.79.25])
    by mx.google.com with ESMTPS id a9si3748068qcu.106.2012.05.18.06.05.02
    (version=TLSv1/SSLv3 cipher=OTHER);
    Fri, 18 May 2012 06:05:02 -0700 (PDT)
    Received-SPF: softfail (google.com: domain of transitioning dr@pharma.com does not designate 50.16.79.25 as permitted sender) client-ip=50.16.79.25;
   Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning dr@pharma.com does not designate 50.16.79.25 as permitted sender) smtp.mail=dr@pharma.com
   Received: from ip-10-111-7-139.ec2.internal (localhost [127.0.0.1])
by ip-10-111-7-139.ec2.internal (8.14.4/8.14.4/Debian-2ubuntu1) with ESMTP id q4ID4YvM004650
for <nava@gridlex.com>; Fri, 18 May 2012 13:04:34 GMT
   Content-Type: text/plain; charset="utf-8"
   MIME-Version: 1.0
   Content-Transfer-Encoding: quoted-printable
   Subject: Hi Nava
   From: dr@pharma.com
   To: nava@gridlex.com
   Date: Fri, 18 May 2012 13:04:34 -0000
   Message-ID: <20120518130434.4647.68243@ip-10-111-7-139.ec2.internal>

   Sample Ignore

Will this work?

  v=spf1 ?include:pharma.com -all

Answer

include:pharma.com – means that receiving server should check SPF record for pharma.com first and then return to check.. nothing.

I suggest you add correct MX record and use default SPF:
v=spf1 +a +mx ~all

or if you surely don’t need mx use this with ip of your server:
v=spf1 +a +ip4:IP.AD.DR.ES ~all or v=spf1 +a +a:smtp.yourservername.tld ~all

if you don’t need to send e-mail from other servers – replace ~all with -all.

Read a good article on SPF record format.

Attribution
Source : Link , Question Author : Nava , Answer Author : DukeLion

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