Why do actions I take on a message that I was cc’d on impact another person’s inbox

moving a message in my mailbox that i was cc’d on causes another recipient to lose the message in their inbox. Why?



Posted on Dec 16, 2025 10:13 AM

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6 replies

Dec 16, 2025 2:15 PM in response to IdrisSeabright

The people involved are myself and my spouse. My spouse brought it to my attention asking me why I deleted a message that was addressed to them with a cc to me. Not sure about other instances or people. I do know that routinely if we both get the same message sent to us and one of us reads the message it gets marked as read in the other person’s inbox even if they hadn’t opened it.

Why do actions I take on a message that I was cc’d on impact another person’s inbox

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