Get rid of Primary and just keep ALL. I will decide what is Important to me. Your system as slowed down to a crawl.
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Maureen Reeder
shared this idea
We encourage you to read at the top of the Uservoice header (forum). There we provide What’s New, Coming Soon and some Tips. There we mention how to disable Inbox Categories: All, Priority, etc. Definitely read those as we update them with useful information. Thanks.
https://yahoo.uservoice.com/forums/962180-new-yahoo-mail