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Email messages not being delivered due to hack - how to fix?

I keep getting this message when I send out emails beyond office 365 users.


"Your message couldn't be delivered because you weren't recognized as a valid sender. The most common reason for this is that your email address is suspected of sending spam and it's no longer allowed to send messages outside of your organization. Contact your email admin for assistance."


Does anyone know how to fix this... in plain english.  I'm novice at how to go and fix MX records or things like that.  Or can this be fixed?


Hey @blondemomshell,


This sounds like an account specific issue our live support teams would need to review with you directly if the Office email address was purchased with us. You can contact our 24/7 phone support team for immediate assistance at any of the numbers listed here


CG - GoDaddy | Community Moderator
24/7 support available at