Engagifii uses SendGrid to send and track emails. Sometimes, you may notice that an email shows as “not opened” in Engagifii, even though the recipient has confirmed opening it.
This happens because Engagifii relies on SendGrid’s open tracking data, which can be affected by several factors:
1. Images Disabled or Blocked
Open tracking depends on a tiny, invisible image (a one-pixel tracking pixel) included in the email. When the recipient’s email client loads this image, SendGrid records the open.
If the client blocks images or doesn’t automatically download them, the open event will not be logged.
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Many clients (e.g., Outlook, Gmail, Apple Mail) block images by default or require manual approval.
2. Privacy Protection in the Email Client
Some email providers, such as Apple with Mail Privacy Protection (MPP), interfere with tracking by either pre-fetching the image (making activity look generic) or preventing the image from loading altogether. This can lead to “not opened” being reported even when the recipient reads the email.
3. Plain-Text Emails or Pixel Issues
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Open tracking works only for HTML emails. Plain-text emails do not contain the tracking pixel, so opens cannot be tracked.
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In rare cases, email templates or unusual HTML structures may interfere with where the tracking pixel is placed, preventing it from being loaded correctly.
4. Pre-Fetching vs. Actual Opens
Some systems (like antivirus software or security filters) may load the tracking image before the user actually opens the email. In such cases, SendGrid might not count the action as a valid, human-triggered open.
Summary
If an email shows as “not opened” in Engagifii, even when the recipient has opened it, the most likely reasons are:
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Open Tracking is not enabled.
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The email is plain-text (no tracking pixel included).
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The recipient’s email client blocked or ignored the tracking pixel.
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Privacy protection features (e.g., Apple MPP) are interfering.