Email Usage Statistics

Statistics for websites using Email providers

Google Apps for Business
Microsoft Exchange Online
Microsoft Azure DNS
Office 365 Mail
Mandrill
Sendgrid
MailChimp SPF
GoDaddy Email
Zendesk
Mailgun

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Name 10k 100k Million Entire Web
SPF 7,111 61,815 509,864 55,846,074
Google Apps for Business 3,258 25,703 166,014 8,730,995
Microsoft Azure DNS 2,233 14,978 75,676 2,155,012
Microsoft Exchange Online 1,912 15,211 82,175 4,306,305
Office 365 Mail 1,517 12,484 69,819 3,502,882
DMARC 1,000 4,325 12,666 51,132
Sendgrid 960 5,370 20,318 518,480
Zendesk 780 4,167 15,732 56,562
Mandrill 732 5,701 26,937 556,638
MailChimp SPF 592 4,731 23,042 275,581
Amazon SES 496 2,699 10,513 63,510
Proofpoint 484 1,983 5,498 42,409
Mailgun 461 3,349 16,164 220,961
Sender ID 340 1,835 8,827 320,505
GoDaddy Email 265 4,560 72,327 36,025,812
Mimecast 263 1,814 7,753 89,981
Salesforce SPF 237 1,133 3,521 11,623
Rackspace Email Hosting 193 2,153 17,679 503,254
Sailthru 171 418 779 1,630
Postmark 171 986 4,006 35,021

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Email hosting providers are calculated from mail exchange information. The email hosting provider can provide varying levels of functionality, from full end-to-end email functionality to security and protection functionality, acting as a mail proxy that delivers the valid and safe emails to the actual email exchange. The links off of the various email technologies we track explain the functionality the services provide.