outlook and 365 still not working?

For the Outlook email issue, start with the mailbox-side checks first because the problem began yesterday and affects receiving mail:

1. Check whether Microsoft cloud storage is full. If cloud storage is full, Outlook.com cannot send or receive email, and messages sent during that time are bounced back to the sender and are unrecoverable.
2. If storage is not full, check whether the account needs attention:
   • update the password if it was changed recently
   • check whether the account was temporarily blocked because of unusual sign-in activity
   • if sign-in is failing, use the Microsoft account sign-in helper
3. If Outlook desktop is freezing or not working correctly, check for an open dialog box that is blocking Outlook. Use Alt+Tab to look for hidden confirmation windows.
4. If Outlook shows Processing or appears frozen, check the status bar at the bottom. If a large move or delete operation is running, wait for it to finish.
5. Install the latest Windows and Microsoft 365/Office updates.
6. Repair Microsoft 365:
   • close Microsoft 365 apps
   • open Control Panel > Programs and Features
   • right-click the Microsoft 365 or Office installation
   • select Change
   • run Online Repair
7. If Outlook still hangs or crashes, test whether an add-in is causing it:
   • close Outlook
   • press Windows key + R
   • run Outlook /safe
   • if Outlook works in safe mode, go to File > Options > Add-Ins
   • at the bottom, select COM Add-ins > Go
   • clear active add-ins, restart Outlook, then add them back one at a time
8. If Outlook still does not work, repair the Outlook data files by using the Inbox Repair Tool as described in Repair Outlook Data Files (.pst and .ost).
9. If the issue continues, create a new Outlook profile:
   • Control Panel > User Accounts > Mail > Show Profiles
   • remove the existing profile only if the data files are backed up or stored on a server
   • select Add and create a new profile

For the Microsoft 365 app side, the supported steps in the context are to update Windows and Microsoft 365 and then run Online Repair. Out-of-date software and corrupted Outlook profiles are listed as common causes of send/receive problems.

If the Outlook problem affects multiple users in the organization, an admin should check Microsoft 365 service health for Exchange Online. If a self-service fix does not resolve the connection problem, the Support and Recovery Assistant for Microsoft 365 can diagnose common Outlook connectivity issues.

• Can't send or receive email in Outlook.com | Microsoft Support
• Outlook not responding, stuck at "Processing," stopped working, or freezes
• Classic Outlook not responding, stuck at "Processing," stopped working, or freezes | Microsoft Support
• Outlook crashes or stops responding when used with Office 365 | Microsoft Support
• Fix Outlook connection problems for Microsoft 365 account