Forum Discussion
Adding two accounts with the same address to Outlook
If that is the case then you are in the hands of your Administrators then I'm afraid. It may be that they have a good reason for configuring things this way for the time being. Have you explained to them the impact of this issue? I am presuming you will have.
Follow these steps to connect a Yahoo Mail, AOL, or other email account to Outlook.com.
Select Settings Settings > View all Outlook settings > Sync email.
Under Connected accounts, select Other email accounts.
On the Connect your account page, enter a display name (the name recipients will see when they receive an email message from you) and the full email address and password of the email account you want to connect to your Outlook.com account.
Notes:
If you've turned on two-step verification for your connected account, you'll need to create an app password for that account. Go to your provider's account security page to create the app password, and then return to Outlook.com to enter that password on the Connect your account page.
Two-step verification makes it difficult for someone else to sign in to your email account. It uses two different forms of identity: your password and a contact method, such as a PIN or security code. Your email provider should have information on their web site about setting up two-step verification.
Select OK.