SendRecurring - SendRecurring allows you to setup, send, and maintain scheduled email reminders.
Junk Email Filter - Junk Email Filter is a front end spam filtering and virus blocking service for email servers.
Recurrr - Send recurring emails
BlueMail - BlueMail is an email management app for Android, iOS, and Windows.
FollowUpThen - The simplest way to schedule an email reminder
Covideo - Covideo is a Video Email Platform for Businesses that enables companies to communicate quickly and effectively with their customers.