Unable to get into my email

Switch back to Outlook (classic) on the PC first; clicking “new Outlook” changed the Windows email application, not the mailbox that still works on the phone.

Restore the previous Outlook

1. In new Outlook, find the New Outlook toggle in the upper-right corner and turn it off.
2. Select Switch back to classic Outlook.
   • Alternatively, select Use classic Outlook this time to open the previous version immediately without making the switch permanent.
3. If there is no toggle, open Start, type Outlook, and select Outlook (classic) rather than the icon marked New. Microsoft notes that the toggle might be absent when classic Outlook is not installed.^1^
4. Confirm that the .net account and its Inbox appear in classic Outlook.

This does not delete or move the mailbox. New Outlook and classic Outlook are separate PC applications and can also be kept side by side.^2^

If you want to continue using new Outlook

The empty Outlook address is probably a different account from the .net mailbox. Add the .net address as its own email account:

1. In new Outlook, select View → View settings.
   You can also select File → Account info.
2. Open Accounts → Your accounts.
3. Under Email accounts, select Add Account.
4. Enter the complete .net email address and select Continue.
5. Enter that mailbox’s password and complete any prompts from the .net email provider.
6. After it is added, select Manage beside the .net account → Set as primary account.^3^

Do not remove the working account from the phone. Also avoid choosing Remove from all devices in new Outlook; Microsoft warns that this removes the account across Outlook clients and could remove cloud-only data.^3^

If Outlook requests an app password, obtain one from the .net email provider and enter it instead of the normal password. Some IMAP accounts require this security method.^3^

If this is Outlook.com in a web browser

Outlook.com webmail no longer adds or synchronizes third-party mailboxes as connected accounts. A .net mailbox must instead be used through new/classic Outlook for Windows, the provider’s own webmail, Outlook mobile, or forwarding configured with the provider.^4^

If the empty address begins with outlook_ followed by many characters, that is a placeholder address associated with using a non-Microsoft address for a Microsoft account. Microsoft’s documented workarounds are to configure the provider mailbox manually as POP/IMAP in classic Outlook or use an Outlook.com/Hotmail.com alias.^5^

Replies cannot be sent privately to the email address supplied in a public Q&A post; remove or mask any personal address posted publicly.

References

1. Toggle out of the new Outlook for Windows | Microsoft Support
2. Run new Outlook and classic Outlook side-by-side | Microsoft Support
3. Add an email account to Outlook for Windows | Microsoft Support
4. Connected email accounts like Gmail and Yahoo not working in Outlook.com | Microsoft Support
5. Outlook.com email account appears as "outlook_[long series of letters and numbers]@outlook.com" in Outlook for Windows | Microsoft Support