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Feb 3, 2016 2:15 PM in response to fitchjoby Jason L,Howdy fitchjo,
Welcome to Apple Support Communities.
From what I gather, there's an issue with some messages not being marked as read in the Mail app on your MacBook Pro.
Try taking a look at the article below which provides some general troubleshooting tips that may resolve the issue and tips that can help you isolate and resolve issues in OS X.
Mac OS X: How to troubleshoot a software issue - Apple Support
So long.
