Can't Verify!

Can't Verify!

Hi - I'm switching my email account to zoho. It is presently with Yahoo Small Business (Aabaco) and domain victoriastreet.com is registered with Network Solutions.  Through Yahoo, I've created CNAME zb14511469 and pointed it to zmverify.zoho.com - twice, 1 week apart, with no success.  Should I have done this through Network Solutions (registrar) instead?  Thank you!