Issues with sending/receiving mails

Issues with sending/receiving mails

Hi

We created arzooo.com domain ids on zoho. We have set up DKIM, SPF etc all relevant settings. But whenever anyone sending a mail on any of the domain ids, it shows this mail id is not found. Mails are bouncing. 

Also, our mails are not going to any external ids. Pls help us resolve this ASAP.