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SPF filter issue - Need an expert opinion

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=5504
Printed Date: 16 July 2025 at 11:04am


Topic: SPF filter issue - Need an expert opinion
Posted By: Terry
Subject: SPF filter issue - Need an expert opinion
Date Posted: 14 February 2006 at 6:09pm

I am on version 2.7.1.514 and am seeing a curious spf issue.  When I look up oregoniron.com with ip address 209.63.16.2 I get a softfail and the mail is blocked coming in (we block softfails).  However when I do the same thing on http://www.dnsstuff.com - www.dnsstuff.com I get a pass on the same sender. 

this is what oregoniron.com has in the dns table....is there an error here?

Domain Type Class TTL Answer
oregoniron.com. TXT IN 3600 "v=spf1 mx a:209.63.16.2 ~all"


Replies:
Posted By: LogSat
Date Posted: 14 February 2006 at 10:26pm
I'm afraid that oregoniron.com has an incorrect SPF record, and that dnsstuff.com is not performing the correct tests.

I believe if oregoniron is trying to allow the IP 209.63.16.2 to send emails, they should use the "ip4:" directive, not the "a:" one.

You can double-check with the official SPF site for an explanation on why the email is being rejected:

http://www.openspf.org/why.html?sender=a%40oregoniron.com&ip=209.63.16.2&formwasused=1&debug=0 - http://www.openspf.org/why.html?sender=a%40oregoniron.com&am p;ip=209.63.16.2&formwasused=1&debug=0

If an email had originated from one of their mx servers, for exampel 209.63.16.81, then it would have passed the SPF test as seen here:
http://www.openspf.org/why.html?sender=a%40oregoniron.com&ip=209.63.16.81&formwasused=1&debug=0 - http://www.openspf.org/why.html?sender=a%40oregoniron.com&am p;ip=209.63.16.81&formwasused=1&debug=0




-------------
Roberto Franceschetti

http://www.logsat.com" rel="nofollow - LogSat Software

http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP

Posted By: Guests
Date Posted: 15 February 2006 at 9:36am
Thanks Roberto I will forward that information on to them.


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