You can connect to your Office 365 or other Microsoft Exchange based email account Microsoft Outlook for Mac 2011 by using only your email address and password.
Pictures may vary depending on your version of Outlook for Mac.
Outlook for Mac 2011
Open Outlook for Mac 2011. On the Tools menu, click Accounts. If this is the first account you're creating in Outlook 2011, under Add an Account, click Exchange Account.
If you've previously created an email account for a different email address, in the lower corner of the Accounts dialog box, click New, and then click Exchange.
On the Enter your Exchange account information page, type your email address.
Under Authentication, make sure User Name and Password is selected.
In the User name box, type your complete email address. In the Password box, type your password.
Make sure Configure automatically is selected, and then click Add Account.
After you click Add Account, Outlook will perform an online search to find your email server settings. In the dialog box that asks if you want to allow the server to configure your settings, select the Always use my response for this server check box, and then click Allow.
If Outlook is able to set up your account, you'll see the account you set up in the Accounts dialog box. Close the Accounts dialog box. If Outlook isn't able to set up your account, see the next section in this article.
Outlook for Mac 2016
On the setup page, click Add Account.
2. Click the account type you want to add:
IMPORTANT: If you don't know which type of email server your account uses, check with your email provider, internet service provider, or email administrator.
Click Exchange or Office 365 to add your work email account.
Click Other Email (such as IMAP or POP) to add your personal, online email account, like Hotmail, Outlook.com, Google, MSN, iCloud, etc.
3. Enter your account information, and click Add Account.
NOTE: For a work account with Office 365 subscriptions, please make sure you use your email address for both the Email address and User name fields.
All the accounts you add will show in the left pane.
TIPS: To add more email accounts, on the Tools tab, click Accounts.
1. At the bottom of the left pane, click Add.
2. Enter your Exchange account information, and check the Configure automatically box, and click Add Account.
IMPORTANT: If you don't know your domain name or which type of email server your account uses, check with your email provider, Internet service provider (ISP), or email administrator.