7 days to go from $0 to $100 million

How Mailbox Captured the Market and Was Acquired by Dropbox for $100 Million in Just 37 Days

In January 2013, Gentry Underwood launched Mailbox, an innovative email app designed to tackle one of the biggest pain points of modern life: the overwhelming flood of unread emails. Just over a month later, Mailbox was acquired by Dropbox for a staggering $100 million. Here’s how they achieved this rapid success:


1. Solving a Critical Problem

  • The Problem: People were struggling to manage their overflowing inboxes, with no elegant solution available.
  • The Solution: Mailbox offered a simple, intuitive interface that helped users quickly and efficiently triage their emails, turning a cluttered inbox into a manageable task list.

2. Innovative Referral System

To build buzz and scale rapidly, Mailbox implemented a “referral reservation system” that was both automated and viral:

  • Step 1: Users signed up for notifications to be alerted when the app was ready for them.
  • Step 2: Each user could see how many people were ahead of them in the queue.
  • Step 3: To move up the line faster, users were encouraged to invite their friends.
  • Step 4: As more friends signed up, they in turn invited others, creating a viral loop.

This gamified reservation system generated excitement and anticipation, making people eager to gain access to the app.


3. The Viral Video

Mailbox released a beautifully crafted video explaining the app’s features and benefits. The video resonated with viewers because:

  • The Problem Was Universal: Everyone could relate to the frustration of an unmanageable inbox.
  • The Solution Was Simple: The app’s swipe-based email management system was intuitive and visually appealing.
  • The Message Was Clear: The video communicated the app’s functionality and value in an engaging way.

The video went viral, amplifying interest in the app.


4. Tech Media Amplification

  • Tech journalists, always on the lookout for innovative solutions to common problems, eagerly covered Mailbox.
  • The app’s sleek design, clever functionality, and the buzz generated by the referral system gave journalists plenty to write about.

5. The Snowball Effect

  • Media Coverage + Viral Video: The video’s success attracted media attention, which in turn brought more users to the app.
  • Referral System: The gamified queue drove exponential growth as users recruited their friends to move up the line.
  • Rapid User Growth: Within 37 days, 538,000 people were on the waiting list to access Mailbox.

6. The Dropbox Acquisition

  • Dropbox recognized the immense potential of Mailbox and its ability to solve a widespread issue with email.
  • With the app’s rapidly growing user base and buzz, Dropbox made the strategic decision to acquire Mailbox for $100 million just 37 days after its launch.

Key Takeaways

  • Focus on a Real Problem: Mailbox addressed an issue that resonated with millions of users—unread email overload.
  • Simplify the Solution: The app’s intuitive design made it easy for users to understand and adopt.
  • Create Buzz: A viral video and an innovative referral system drove excitement and word-of-mouth growth.
  • Leverage Media: Tech press coverage amplified the app’s visibility, bringing in more users.
  • Timing is Everything: By building a buzzworthy product and scaling rapidly, Mailbox positioned itself as an attractive acquisition target.

Mailbox’s story is a masterclass in solving a universal problem, crafting a viral growth strategy, and achieving rapid success in the tech world.

Source: Business Insider Australia

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