You are trying to send an email from a specific email account in the new Outlook for Windows, but the From field keeps reverting to a different address. This problem occurs because the new Outlook strictly enforces a default sending account setting that overrides manual From selections in certain views. This article explains why this happens and provides the exact steps to set your preferred default From address.
Key Takeaways: Fixing the Default From Address in New Outlook
- Settings > Mail > Accounts > Default account: Set your preferred email account as default to control the From field in new messages.
- From button in a new message window: Manually override the default account for individual emails when needed.
- File > Account Settings > Account Settings (Classic Outlook): For users switching between new and classic Outlook, ensure the default is consistent in both versions.
Why New Outlook Ignores Your From Selection
The new Outlook for Windows uses a single default account setting to determine which email address appears in the From field for all new messages. This setting is stored in your account configuration and applies globally across the application. When you try to change the From address manually by clicking the From button in a new message window, the new Outlook may still revert to the default account if the account you selected is not properly recognized or if the default account setting was recently changed.
The root cause is that the new Outlook does not offer the same level of per-message account control as the classic Outlook. In classic Outlook, you can set a different From address for each folder, rule, or send/receive group. The new Outlook simplifies this by enforcing one default account for all outgoing mail. If you have multiple accounts configured, only the account marked as default will be used unless you manually override it each time. The override, however, can fail if the account you select is not fully synced or if the default account setting was changed without restarting Outlook.
Additionally, the new Outlook uses a cloud-based profile that syncs settings across devices. If you change the default account on one device, it may take a few minutes to propagate to others. During this sync delay, the old default account may still appear in the From field.
Steps to Set and Lock the Default From Address
- Open Outlook Settings
Click the gear icon in the top-right corner of the new Outlook window. This opens the Settings pane on the right side of the screen. - Navigate to Mail > Accounts
In the Settings pane, click Mail in the left column, then click Accounts. This shows a list of all email accounts added to the new Outlook. - Select the Default Account
Find the email account you want to use as your default sending address. Click the three dots (More options) next to that account, then select Make default. A checkmark appears next to the account name to confirm it is the default. - Restart Outlook
Close the Settings pane, then close and reopen Outlook. This forces the new Outlook to reload the account configuration and apply the default setting to all new messages. - Test the Default Address
Create a new email message by pressing Ctrl+N or clicking New Mail. Verify that the From field shows your chosen default address. If it does not, repeat steps 1 through 4 and ensure the correct account has the checkmark.
Manually Override the From Address for a Single Message
- Open a New Message Window
Click New Mail or press Ctrl+N. - Click the From Button
In the message window, locate the From button in the ribbon. It may be hidden under the Options tab. Click From to open the account selector. - Select a Different Account
Choose the email account you want to use for this message. The From field updates to show that address. If the account does not appear, click Other Email Address and type the address manually. - Send the Message
Complete your email and send it. The override applies only to this message. The next new message will again use the default account.
If the Default From Address Still Does Not Change
The From Field Shows a Different Account After Setting the Default
This can happen if the new Outlook is still syncing with the cloud. Wait 5 to 10 minutes, then restart Outlook. If the problem persists, remove the account that shows incorrectly and add it again. Go to Settings > Mail > Accounts, click the three dots next to the problematic account, select Remove, and confirm. Then add the account again using the Add Account option.
The Default Account Setting Keeps Reverting to Another Account
This typically occurs when you have the same account configured in both the new Outlook and the classic Outlook. The classic Outlook uses a separate profile that can overwrite the new Outlook default. To fix this, open the classic Outlook, go to File > Account Settings > Account Settings, select the account you want as default, and click Set as Default. Then restart both versions of Outlook.
Cannot See the From Button in the New Message Window
The From button is hidden by default in the simplified ribbon. Click the three dots (More commands) at the far right of the ribbon, then select Show Classic Ribbon. The From button appears under the Options tab. Alternatively, press Alt+H, then press F to toggle the From field visibility.
New Outlook vs Classic Outlook: Default From Address Control
| Item | New Outlook | Classic Outlook |
|---|---|---|
| Default account setting | Settings > Mail > Accounts > Make default | File > Account Settings > Account Settings > Set as Default |
| Per-message From override | Click From button in new message window | Click From button in new message window |
| Per-folder default account | Not supported | Supported via Folder Properties > AutoArchive or Rules |
| Cloud sync of default setting | Yes, across Windows and Outlook for the web | No, stored locally in the profile |
| Revert to default after override | Yes, next new message uses default account | Yes, next new message uses default account |
In the new Outlook, the default From address is controlled by a single cloud-synced setting. Classic Outlook offers more granular control, including per-folder defaults. Choose the version that matches your workflow. If you need to send from different accounts regularly, the manual override works the same way in both versions.
After completing the steps above, you can now set and maintain your preferred default From address in the new Outlook. If you frequently switch between accounts, consider using the classic Outlook for its per-folder default feature. An advanced tip is to create a Quick Step in the new Outlook that automatically selects a specific From account when you apply it to a message.