Franke was a company I co-founded with Jacob Heftmann and Jake Hobart which sorted emails into Slack channels.
Built on Ruby on Rails, Franke took incoming emails which were linked to Slack accounts and posted them into the correct channel.
Franke was featured on Product Hunt and was one of the very first products to implement "Sign in with Slack".
Franke had moderate success and a number of paying customers, however when Slack released their own email integration, Franke was shut down.