email address somehow still not verified (?!)

email address somehow still not verified (?!)

L.S.

After creating a new email template in CRM I was about to send a group email to my clients, then Zoho CRM announced that they would change the sender address to some kind of Zoho-e-ddress because my email address "has not been verified". 

Not only is this very annoying, because now I have to delay sending this important email until this problem is solved, but also incomprehensible because this is the email address (coupled to my domain name) that is associated with my account. Nowhere in my account, profile or settings does it mention that my email-address is not verified, or is there a mention and option to "verify this email address". So, I have no idea how and where to adjust this.

Please give instructions ASAP!

Thank you