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Message 5.0.0/5.1.0/5.7.1 NDR for SPF?

Posted on 2014-02-25
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Last Modified: 2014-02-28
Few recipients here and there have said they never got a few messages from our domain. When the NDR was examined it looked like side was rejecting due to errors 5.0.0/5.1.0/5.7.1 re: SPF.

Our mail filtering service adds a bounce tag verification for security and safety so I am guessing that's what stopping the message, but how do we get this to deliver?
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Question by:RTM2007
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Hypercat (Deb) earned 500 total points
ID: 39887087
In your SPF record, make sure that the IP address of the relaying server (the mail filtering service) is included as an authorized sender for your domain.
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