I have a 10 user client that was using Microsoft Exchange 2007. They were also running Outlook 2010. I migrated them from Exchange 2007 to Microsoft 365. I also upgraded the Outlook to 2013.
Everything is working fine except for one user. He keeps telling me that is junk email is not working. By not working, he means that it wont learn. He will make an item as junk, and it will still appear in the inbox or he will white list an email and it will appear as junk.
None of the other 9 users have this issue. I changed the junk email settings from High to Low to None. That has not made any difference.
Any idea on how to fix the junk email for just one user?