Most popular email host

Many companies use professional email services. Having an sales@mycompany.com looks much better than using sexy_lizard89@hotmail.com. These statistics reflect what email provider is the most popular. (Keep in mind that any free email provider is automatically excluded).
This data has been retrieved by accessing the DNS MX records from all the domains in our database.
Top email hosters
# MX Host Amount
1 Google.com 206,768
2 Outlook.com 99,431
3 Secureserver.net 92,620
4 Googlemail.com 88,632
5 Qq.com 30,012
6 Ovh.net 28,026
7 Yandex.net 25,298
8 Registrar-servers.com 22,872
9 Yandex.ru 18,242
10 Zoho.com 17,706