Outlook gives Message 0x8004011D in MS 365

Use Microsoft’s official support page to request chat or the available contact option rather than relying on an unverified “authorized dealer”; meanwhile, isolate whether the affected mailbox or classic Outlook is disconnecting.^1^

1. Test the affected mailbox outside Outlook

Sign in to the webmail site supplied for the affected domain account—not the separate Outlook.com profile—and try to send and receive a test message.

• Webmail also fails: Contact the email provider or domain administrator. The mailbox service, authentication, or server configuration needs investigation.
• Webmail works: The mailbox service is functioning, so the issue is likely localized to Outlook, its configuration, or this computer’s connection. Continue below.
• In classic Outlook, check the status bar. If it says Working Offline, select Send/Receive > Work Offline once to reconnect. If it says Disconnected or Trying to connect, continue with the connectivity diagnostic.^2^

Because creating another profile and repairing the PST did not help, there is no reason to repeat those operations now.

2. Run the classic Outlook connectivity diagnostic

On the same Windows computer where classic Outlook is installed:

1. Open the Classic Outlook Connectivity troubleshooter.
2. Allow it to open the Get Help app.
3. Complete the diagnostic and apply any recommended connectivity or authentication correction.
4. Restart Outlook and test Send/Receive.

This troubleshooter requires Windows 10 or later and does not work with new Outlook for Windows.^3^

If this is an organizational Microsoft 365 mailbox, an administrator can also run Outlook User Connectivity diagnostics and check Microsoft 365 Service health > Exchange Online, particularly if multiple users are affected.^4^

3. Conditional POP/IMAP checks

These steps apply only if File > Account Settings > Account Settings identifies the affected account as POP or IMAP.

If the provider requires an app password

Only use this branch if Outlook specifically requests an app password or the provider requires one for desktop email applications:

1. Create a new app password through the email provider’s webmail security settings.
2. In Outlook, select File > Account Information and choose the affected IMAP account.
3. Select Account Settings > Server Settings.
4. Replace the password with the new app password.
5. Select Next > Done.^5^

Windows 10 with a POP/IMAP “server interrupted” error

Use this workaround only when all three conditions apply:

• The computer runs Windows 10.
• The account is POP or IMAP.
• Outlook reports that the server interrupted or unexpectedly terminated the connection.

Registry changes can affect Windows networking; export the key before deleting anything.

1. Close Outlook.
2. Select Start, enter regedit, and open Registry Editor.
3. Navigate to:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\SecurityProviders\SCHANNEL\Protocols

4. If—and only if—a TLS 1.3 key exists beneath Protocols:
   • Right-click Protocols and select Export to create a backup.
   • Delete the TLS 1.3 key and its subkeys.
5. Restart Outlook. If synchronization still does not start, restart Windows.

Microsoft documents this workaround for Windows 10; it should not be applied to Windows 11 merely because Outlook disconnects.^5^

4. Contact Microsoft Support

Open Microsoft’s support page, choose the appropriate personal or business product, describe error 0x8004011D, and request the available chat or contact option.^1^

If using new Outlook for Windows with an eligible Microsoft 365 subscription, select Help > Support, choose the affected account, accept the privacy statement, describe the disconnect, attach a screenshot, and select Submit. Responses can be tracked in the same Support pane.^6^

Remove personal phone numbers and full account addresses from public forum posts; provide them only inside Microsoft’s private support process.

References

1. Contact Microsoft customer support | Microsoft Support
2. [Classic Outlook](https://support.microsoft.com/outlook/getstarted/how-to-work-offline-in-outlook-for-windows#status-messages-in-classic-outlook)
3. How to troubleshoot issues that cause Outlook to crash or stop responding when used with Microsoft 365
4. Fix Outlook connection problems for Microsoft 365 account
5. Outlook IMAP or POP server unexpectedly terminated the connection, and the server was interrupted | Microsoft Support
6. Contact support and provide feedback in new Outlook for Windows | Microsoft Support