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How Many Email Users Are There?

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Question: How Many Email Users Are There?

Answer: According to a Radicati Group study from May 2009, there are about 1.9 billion email users worldwide. That makes a tad more than one in every five persons on the earth use email.

For 2014, Radicati Group projects 2.5 billion email users worldwide.

How Many Email Accounts?

The mailboxes commanded by these millions of users were calculated to number about 3.3 billion in 2012 (from 2.9 billion in 2010).

How Many Gmail Users?

In June 2012, Google reported 425 million users worldwide.

comScore estimated just shy of 288 million users worldwide in October 2012.

How Many Outlook.com Users?

In May 2013, Outlook.com had a reported 400 million users. In July 2011, Microsoft had reported 360 million users for its Windows Live Hotmail service worldwide.

comScore numbers for October 2012 were a bit over 286 million users.

How Many Corporate Users?

The Radicati Group counted 730 million business email inboxes worldwide in 2010, 25% of all email accounts.

Naturally, all numbers are educated guesses. I don't know the exact methods used to arrive at them. Still, they are probably more educated a guess than most of us can make.

How Many Emails?

The millions of email users send hundreds of billions of messages every day.

(Updated March 2014)

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