Boomerang for Gmail is a tool which not only lets you schedule emails, but also allows you to take videos out of your inbox when you don’t need them and return them to top of your inbox when you do, and reminds you when people don’t reply to your messages. It provides you with two options when scheduling emails – sending the message at a set interval or at a certain date and time in future. It comes with a mobile app for Android.
Currently, Mailtrack only integrates with Gmail. It helps you know when your emails are opened.Email Tracking Tools Mailtrack.io
Mailtrack ensures that your data remains secure and your emails private.Key security features:Mailtrack runs on completely automated software, so no one at Mailtrack can have access to your emails.The permissions that MailtrackEmail Tracking Tools Mailtrack.io
As of now, Mixmax is available as an extension for Google Chrome and can only be used with Gmail. However, Mixmax's support team has publicly stated that an Outlook integration is definitely in the works.Email Tracking Tools Mixmax
Mixmax helps you create and send smarter email. All emails are sent via the Gmail API directly, just like the mail client on your phone. And Mixmax uses the same standard SSL encryption as Gmail. It uses OAuth so itEmail Tracking Tools Mixmax
ContactMonkey offers Outlook email tracking and Gmail email tracking that is built into your Outlook or Gmail inbox so you can start tracking emails with the programs you already use. By finding out who's opening your emails andEmail Tracking Tools ContactMonkey