We track the email opens using a tracking pixel inserted into the email. Check more info on how NetHunt tracks the email open rate by this link.

If you got a reply but the email does not show any opens, there might be a few options:

  1. The email tracking is not enabled, check this article for more info.
  2. The recipient switched off the showing of the external images and we cannot load our little pixel to see if it has been loaded:

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