Our first and only font is called Mailpile and was based on the awesome free font Fauna One made by Eduardo Rodríguez Tunni. The goal was to create something closer the slab-serif font Museo which we had used in our branding but were unable to bundle in the Mailpile source code due to a licensing conflict.
We were first aided by font master Richard Fink which our designer Brennan Novak refined to it's current state. We also had some amazing help & mentorship from Vernon Adams. Lastly, the uber talented Sveinbjorn Paulsson helped finish off the final touches and made the alternate weights.