My Yahoo e-mail inbox has changed. Just today. There is now an option that says "flag this message"?

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You would flag a message that you need to follow up with. For example if someone sends you a question in a email that you have to research before emailing them back, you can flag the message and then each time you check your email you will be reminded to get back to that person....Show more

Hmm, that is weird that you just received this option. I've had yahoo mail for many years and it has always been an option. It is just for you to use if you want to be able to find a message easily, or "flag" it for future reference. i.e. if it is a bill that you need to pay later....Show more

A flag is just for your own use to point to an email that you may wish to refer back to.
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