@T.Krein- what are the header timestamps ? it should show the original send time
For Gmail
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Open the email.
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Click the three-dot icon (More) in the top-right corner of the email.
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Select Show original to see raw headers in a new tab.
For Outlook (Desktop App)
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Double-click the email to open it in a new window.
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Go to File > Properties.
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Look in the Internet headers box for the Received: lines.
For Outlook (Web)
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Open the message.
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Click the three dots menu (More actions).
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Choose View message details or View message source.



