How can I fix this?

I cannot get a hold of anyone at tech support via phone

I have left voicemail, i have emailed, now i'm coming to the forums to see if I can get an answer

email received:

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Dear Admin, 

Greetings from the Zoho Mail. 

You have configured email routing in Zoho Mail. 

This is to warn you that emails sent to following email routes configured for the domain xyzdomain.com gets bounced recurrently, 

[smtp.secureserver.net]. 

In case the email bounce persist, above email routes will be disabled. 

Please check the configuration settings. 

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