Clearing Outlook Cache
Step 1: Type settings in the search box, and then select the Settings app from the results.
Step 2: Select Apps > Installed apps, and then type Microsoft TeamsOutlook in the search box.
Step 3: Locate the New Microsoft Teams appOutlook from the results, select the More options button (...) on the right, and then select Advanced options.
Step 4: In the Reset section, select Reset.
