Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS
SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.
Weer - A HTTP protocol debugger with Chrome DevTools frontend interface
Recurrr - Send recurring emails
James - James is a HTTP Proxy and Monitor that enables developers to view and intercept requests made from...
Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.