Mailbox, we hardly knew you.


Mailbox, we hardly knew you.
In December 2012, TechCrunch introduced you as the best email app we’ll ever use. Something that could fundamentally change the way we do things.
In March 2013, 93 days after your debut, Dropbox acquired you for $100M.
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Unlimited resources. Global distribution. Your next step: fundamentally change everything, of course.
Except that’s not what happened. Today, less than three years later, Mailbox has been shut down. And so, with a protracted sigh, you join the long list of acquisitions that went up in a cloud of ash.
(As an entrepreneur creating a fantastic new email experience, I can’t help but say this… Looking for a Mailbox replacement? Sign up for Superhuman!)

But as a founder who knows how hard this journey is, the demise of Mailbox makes me very sad. (I sold Rapportive, also an email company, to LinkedIn.)
The truth is this: sometimes acquisitions fail, despite everybody having the best intentions. Below are my tips on making yours work.
Before we jump in, let’s introduce two roles. First, the managing sponsor. It was probably their idea to acquire you in the first place, and they are probably your new boss. Second, the executive sponsor. They likely report direct to the CEO, and it could well be their budget that was used to buy your company. In smaller acquirers, or for larger acquisitions, these two may in fact be the same person; the tips below assume they are different.
We should work hard to make more acquisitions succeed.
It is undoubtedly fine art, but I am certain we can do better. It requires experienced acquirers and open-minded founders. It requires sharing lessons and honest dialogue.
If you know anybody going through an acquisition, please send them this post. You might just save their happiness, and spare the world yet another product shutdown.
Thank you to my friends for sharing their experiences, and to Bill Trenchard, Ed Sim, and Jason Calacanis for reading drafts of this post.