If Mailbox can draw new users to Dropbox and convert more existing users up the freemium chain, it will be well worth the estimated nine figure price tag.

FORBES: Another Overnight Sensation: Mailbox Is Dropbox's Instagram

At the front desk of the Laventura, a disdainful blond woman provided her with a handful of devices for entry into her new life: apartment and mailbox keys, garage-gate remote, car tag, a code for accessing inner sanctums bearing keypads.

NEWYORKER: Shauntrelle

Downloading the 3D Mailbox application reveals a whole new way to look at your e-mails.

BBC: NEWS | Programmes | Click | Webscape

Presumably to stem the crushing demand, Mailbox restricts the number of new accounts that can be activated at a time.

CNN: Dropbox acquires buzzy app Mailbox

However, attic space will become much less expensive in the 21st century, we will soon introduce a new fruit-recovery utility and version 3.0 will open the mailbox in under two minutes.

ECONOMIST: News report

When a copy of the New York Review Books edition of "Anatomy" first landed in my mailbox, I sighed at its heft, greeting it as a mountain to climb rather than a journey to enjoy.

WSJ: Robert Burton | The Anatomy of Melancholy | Digressions on a Diagnosis | Masterpiece by Danny Heitman

In mobile, email, its newly acquired About.me service and in its new video chat service, the company is trying to erase your memories of AOL dial-up CDs in your mailbox.

FORBES: Can AOL Tech Change Your Perception Of AOL?