Microsoft is investigating issues with Outlook and Microsoft 365 after users report login failures and missing emails, alongside known bugs in classic Outlook.
One of the forum users reported that the Group inbox (WFP, SEO, SPP) doesn’t work in the app. Neither it’s getting updated, nor he can’t receive emails. However, it works well when using a browser.
Ensure smooth email delivery by checking Outlook's status, restarting the app, and maintaining stable internet connectivity ...