MailDrop - maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.
Make It Rain - Random gifs when you get paid via Stripe (Slack and Hipchat)
Guerrilla Mail - Guerrilla Mail is a web-based app that provides a disposable and anonymous email address. Users of the service are not required to set up an account in order to send or receive emails.
Darts Club: PvP Multiplayer - Darts Club: PvP Multiplayer is an amazing player versus player gaming app with a collectible twist.
10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.
Red Stamp Cards - Red Stamp Cards is a fabulous mobile app that facilitates its users to greet their friends and family with excellent paper cards and notes.