When starting Outlook 365 for the first time you will see the screen below. If you already have set up one or more email addresses in Outlook before, just click File, and then look for and click the Add Account button to get to this screen.
Enter your new email address (instead of the one below).
Check the box saying "Let me set up my account manually".

Then click "Connect".
On the next screen below, click IMAP.

On the next screen below, enter the password for your email address.

Then click "Connect".
Outlook will add the email address with our correct settings.

You're all set up now, and can return to Outlook.
Any problems, please open a ticket with our support.
