I'm having issue with domain mapping.  My name servers are with Microsoft (Office365) and they do not allow subdomains.  I cannot change the DNS control to my webhosting or registrar, I have to keep it with Microsoft.

I've put in the CNAME entry as: hostname=support  points to= desk.cs.zohohost.com

When I type https://support.mysite.com I get forwarded to the zoho "One account. Access all services" login page.  However, when I try to complete the "Map Domain" the validation seems to be failing on the first of the 3 steps which it is trying to validate the support.mysite.com.

Any help is greatly appreciated.

Thanks,

Tom