Mailsuite is one of the most accurate and reliable email trackers available. The reason Mailsuite is so powerful is because it places an email tracking pixel in your emails when you send it. In other words, Mailsuite puts a very small image (don’t worry, you can’t see it!) in your emails when you send them.
When the recipient opens your email, their email downloads that image, which in turn tells Mailsuite that they have opened the email.
Because of how this method of email tracking works, it is unfortunately not possible to track emails that were sent before you started using Mailsuite. This is because it is not possible to place Mailsuite’s tracking pixel in emails that you sent before installing Mailsuite and enabling it.
To ensure you track all emails correctly after installing Mailsuite, please refer to the following articles: