Hi Sir,
In order to check or update the configuration of the existing email account, follow these steps:
1. Open Microsoft Outlook on your device.
2. Go to the File tab >> Info >> Account Information page and click on Account Settings:
3. Select the mailbox in question and click Repair:
4. In the next window, click on Advanced options, check Let me repair my account manually and click on Repair:
5. On the next page, you will see incoming and outgoing server settings.
Make sure all of them are set properly. If any information is set incorrectly, update it for both Incoming mail and Outgoing mail configurations:
6. Once all details for the outgoing connection are updated, click Repair:
Done update new the configuration
Thank You.