Microsoft Exchange Online Market Share  

/> United States
/> United Kingdom
/> Other

How many sites from each region we first detected using Microsoft Exchange Online at specific date periods in the top 1 million sites.

We know of at least 4,043,142 live websites using Microsoft Exchange Online.

Total Country Distribution

Distribution of locations of all Microsoft Exchange Online customers in the top 1 million sites.

Gaining Customers In Top Million sites From
Technology Gained Top 1m Lost Top 1m Net Top 1m
Google Apps for Business
Microsoft Exchange Online is taking customers from Google Apps for Business.
6,137* 2,388* 3,749*
Google Postini Services
Microsoft Exchange Online is taking customers from Google Postini Services.
6,067* 3* 6,064*
Rackspace Email Hosting
Microsoft Exchange Online is taking customers from Rackspace Email Hosting.
3,685* 82* 3,603*
Symantec.cloud
Microsoft Exchange Online is taking customers from Symantec.cloud.
2,555* 116* 2,439*
Office 365 Mail
Microsoft Exchange Online is taking customers from Office 365 Mail.
1,923* 38* 1,885*
Losing Customers In Top Million sites To
Technology Gained Top 1m Lost Top 1m Net Top 1m
Mimecast
Microsoft Exchange Online is losing customers to Mimecast.
544* 882* -338*