Sending, receiving, and organizing email in Outlook.com
Hi, zafar Imran
I’m sorry you’re dealing with this. Since all four accounts still work in webmail, the accounts themselves are likely fine, and the problem is probably with the Outlook app or its local profile.
Please try these steps:
In Outlook, check the bottom of the window. If it says Working Offline, select Send/Receive, then turn off Work Offline.
Select File > Account Settings > Account Settings. Choose each account, select Repair, follow the prompts, and restart Outlook. Repair an Outlook profile
If all accounts still fail, create a fresh Outlook profile. Close Outlook, open Control Panel > Mail > Show Profiles > Add, then add one email account first and test it.
For Gmail, Yahoo, or iCloud accounts, check whether the provider requires you to sign in again or use an app password. Troubleshoot Outlook email setup
Please also tell us error Outlook displays.
Thank you for your patience in reading, I hope this information has been helpful to you.
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