Business email hosting from Zoho.
https://www.zoho.com/mail/
Email Hosting Providers · Business Email Hosting
Get access to data on 879,339 websites that are Zoho Mail Customers. We know of 540,623 live websites using Zoho Mail and an additional 338,716 sites that used Zoho Mail historically and 327,708 websites in the United States.
Get a list of 879,339 websites using Zoho Mail which includes location information, hosting data, contact details, 540,623 currently live websites and an additional 140,375 domains that redirect to sites in this list. 338,716 sites that used this technology previously and 327,708 websites in the United States currently using Zoho Mail.