10 percent chance a given e-mail inbox will have 21K items or more: Dave Troy

There’s a “1 of out of 10 chance” a given e-mail inbox “will be about 21,000 items or more,” writes 410 Labs‘ cofounder Dave Troy at PandoDaily.
Troy, who’s part of the team behind the Inbox Zero web app Mailstrom, analyzed 410 Labs’ findings of data collected from 38,000 inboxes across dozens of e-mail providers, writing:

What’s more there’s an 80 percent chance that any given inbox will be between 72 and 21,000 items. So odds are if you go look in your inbox now, you’ll fall within that range. About 20 percent of users have more than 21,000 emails (and as many as 700,000 — though that’s rare. Most very large inboxes top out under 100,000 emails.)

As Technically Baltimore has reported, Mailstrom has processed more than 80 million e-mails.
Read Dave Troy’s full piece at PandoDaily.