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 213,811
2 Outlook.com 104,801
3 Googlemail.com 90,957
4 Secureserver.net 90,753
5 Qq.com 31,121
6 Registrar-servers.com 31,121
7 Ovh.net 29,235
8 Yandex.net 26,622
9 Zoho.com 18,511
10 Yandex.ru 18,215