How to verify I own the domain when using Wordpress.com and Namecheap?

How to verify I own the domain when using Wordpress.com and Namecheap?

I set up a site on Wordpress.com and use gave my registar Namecheap WP's nameserver addresses. Now I like to use Zoho email service to host the emails, but Namecheap won't let me verify for Zoho that I own the domain because I am not using Namecheap's default nameservers. I cannot use the HTML option because I don't have root access to the site. What other options do I have?