I wish they could open source Mailbox at least... That way it might survive.<p>[1] &quot;Will Mailbox be open-sourced?<p>Unfortunately not. We gave a lot of thought to open-sourcing the underlying system, but this is ultimately not something we will support.&quot;<p>[1] <a href="https:&#x2F;&#x2F;www.mailboxapp.com&#x2F;faq&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.mailboxapp.com&#x2F;faq&#x2F;</a>