Memo to Me - Online email & SMS reminder service.
Right Inbox - Schedule Emails in Gmail To Be Sent Later
Auto Email Sender by Autoclose.net - Auto Email Sender is a small and neat free automatic SMTP email sending tool. As long as you add a list of email addresses, it can automatically send emails or Newsletters to all email addresses one by one via SMTP.
Recurrr - Send recurring emails
Auto Mail Sender - Auto Mail Sender Standard Edition official page. A powerful and easy-to-use eMail scheduler.
FollowUpThen - The simplest way to schedule an email reminder