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When I highlight an unread message in the list, it marks the message as "read" even if I don't open it. I don't want that. Can I change it?

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I don't want a message in the inbox to be "un-bolded" (marked as "read") until I actually open it, but right now just highlighting a message causes it to be marked as "read". Can't find an option to change that. Is there one?

I don't want a message in the inbox to be "un-bolded" (marked as "read") until I actually open it, but right now just highlighting a message causes it to be marked as "read". Can't find an option to change that. Is there one?

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You obviously have the reading pane turned on, so you are opening and reading the message by clicking on it. Try pressing F8 to turn off the reading pane.