How big is email?

Our co-founder Ian just published a piece on the total size of the world's emails, over on

"And, so it is with email. 150 billion is an impossibly large number, and that’s each day. If you printed one day of the world’s emails out, the stack of paper would be 10,000 miles high. A month of them would reach to the moon."

Check it out: How Big is Email?