Email opened link clicked feature request

[petrus9]

Solution title: feature request Email opened or link clicked event

One sentence summary:

Description (1 - 2 paragraphs):
When a user opens an email , clicks on a link update sheet date time.

Design Details:
Please provide a high level design overview with a motivation or problem statement to help us vet your idea.

Lets the sender know if recipients are opening email and interacting with the email, if not can then send again.

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