This has to be the worst app ever in the store! You get Junk in your Inbox, you tag it as Junk, the next day nothing has changed and the same and more Junk is in your Inbox. Emails that are known and tagged as Not Junk appear in the Junk Mail all the time whatever you do the next day it's the same. It's like the whole app resets itself hourly. Total and utter rubbish! And do Microsoft comment on this, nah they couldn't care less 😡