MailTracker provides real-time email tracking services that let users know when, where, on what devices, for how long, and how many times their emails have been viewed. MailTracker can provide such information for Gmail, Yahoo!, Google Apps Business, Hotmail, and custom SMTP accounts. Users can integrate with MailTracker via API. Sign up for early API access at http://answerbook.us4.list-manage.com/subscribe?u=5584699568f85ff97bdbd4fc3&id=37c24ae803
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