Help with email and Shopfiy. Domain with godaddy.

Help with email and Shopfiy. Domain with godaddy.

Hello
I'm trying to set up a few email accounts for my client with Zoho to use with Shopify. Our account is with Godaddy. I believe I did all the steps necessary. I can send email. However, when I try to send one from my gmail I get:

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient bidet.org by  smtp.secureserver.net . [72.167.xxx.xx].

The error that the other server returned was:
550 5.1.1 Recipient not found.  < http://x.co/irbounce >

What am I missing?

#2. I created three email accounts.
One I'm forwarding for now to the main one.
And I created my.name@mysite.org

How do I check that email? I tried logging in off the main page zoho.com with my password but it says incorrect.