Fix Outlook Syncing with the Wrong Microsoft Account Alias
Question details
The user needs to configure Outlook to properly send and receive messages from a third-party email like Gmail instead of defaulting to an unwanted Outlook.com alias.

- Product
- Microsoft Outlook
- Device & OS
- Windows
- Scenario
- Setting up a third-party email account in Outlook when that email is registered as a Microsoft account alias.
- Observed behavior
- Outlook synchronizes using an unwanted Outlook.com alias instead of the designated Gmail address, even when the From address is changed.
Ensure you have your specific third-party email (e.g., Gmail) IMAP or POP server settings and password ready before creating a new Outlook profile.
Manually Configure the Account in a New Outlook Profile
Create a fresh Outlook profile and set up your email manually using IMAP or POP to bypass the alias synchronization issue.
This synchronization issue typically occurs when a third-party email address, such as Gmail, is registered as a Microsoft account alias. Because of this, Outlook defaults to Microsoft's own Outlook.com ecosystem for syncing.
Changing only the 'From' address does not change the underlying synchronization account. You must manually route the connection using standard IMAP or POP protocols.
Ensure that the Microsoft Outlook application is completely closed before attempting to create a new profile.
Press the Windows key + R on your keyboard to open the Run dialog. Type 'outlook /profiles' and click OK to launch the profile manager.
In the Choose Profile dialog, click on Options, then select New. Enter a unique name for your new profile and click OK.
Choose 'Advanced options', check the box for 'Let me set up my account manually', enter your email password, and click Connect.
If the automatic setup fails, click 'Change Account Settings'. Manually input the IMAP or POP server details provided by your email provider (such as Gmail).
Click Connect, then Done. Finally, in the Choose Profile dialog, check the box for 'Set as default profile' and click OK to use this new configuration.

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Frequently Asked Questions
Why does Outlook sync with an Outlook.com alias instead of my Gmail address?
This happens when your third-party email address is registered as a Microsoft account alias. Outlook prioritizes the Microsoft ecosystem's Outlook.com settings for sending and receiving mail instead of connecting to the third-party server.
Does changing the 'From' address in Outlook fix the syncing issue?
No. Manually changing the 'From' address in your email drafts does not alter the underlying synchronization account. You must set up the account manually via IMAP or POP to permanently resolve the sync routing.
Where can I find the IMAP or POP server details for my Gmail account?
You can find these details in your Gmail web interface under Settings > See all settings > 'Forwarding and POP/IMAP' tab, or by searching for official Gmail server configurations on Google's Help Center.




