SPF Failure sending sms message to sms.mycricket.com

Posted by CodeGurl on Server Fault See other posts from Server Fault or by CodeGurl
Published on 2012-12-18T21:20:31Z Indexed on 2012/12/18 23:04 UTC
Read the original article Hit count: 1071

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dns

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spf

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sms

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smtp-helo-name

I built an asp.net application that sends text messages to our employees using carrier-provided email to SMS gateways. The people on Cricket (sms.mycricket.com) are the only ones that are bouncing with a return message like this:

Unknown address error SPF FAILURE/Sender has no SPF records: SEE RFC 4408 - FROM check failed: Received: from unknown (HELO servername.domainname.com) ([ipaddress]) by .... with ESMTP/TLS/DHE-RSA-AES256-SHA; 14 Nov 2012 06:22:56 -0600

From my research it looks like we may need to setup something in DNS for the Sender Policy Framework. I'm not in the networking group so I don't know much about this. How can this be done?

http://en.wikipedia.org/wiki/Sender_Policy_Framework

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