This tool seamlessly integrates with Gmail or a Google Apps account, and tracks who opens and clicks links in sent emails. The Free plan gives 5 tags each day (which is 150 tags per month). Only basic notifications are provided with this plan. Bananatag also displays the location where your emails are read from, on a map with regions highlighted accordingly. Other things that Bananatag does for you include saving contacts and history of your tagged emails.
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