Hi @Rod Delay ,
Welcome to our forum!
Outlook addin that will send an api call when an email is deleted that comes from a specific domain.
Please kindly understand the tag” office-outlook-itpro” which mainly focus on general issues about Outlook desktop client, and we do know little about addin, we suggest you use the tag "office-addins-dev", then people in that forum can help you more appropriately.
We would also like to know if it is possible to know how long someone has had an email open and report back.
As far as I know , it is feasible to request a read report in outlook when you write a new email:
Open a new email > Options > In the Tracking tab and check "Request a Read Receipt" .
The recipient will receive a pop-up window like the image below.
After the recipient confirms you will receive a read report.
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