You can connect up to five e-mail accounts in the Outlook Web App from Microsoft Office 365 for easy management of those connected accounts in one place. When setting up additional accounts, take note of the following:
Hotmail – Windows Live: There’s no need to turn on POP or IMAP access for a Windows Live Hotmail account. If you have folders in your Hotmail account, these folders are copied to your account in Outlook Web App along with the e-mail messages downloaded from your Hotmail account.
Gmail: Set up your account to allow POP access from your Gmail account to download e-mail from the Gmail account to Outlook Web App.
Yahoo Mail Plus, Comcast, AOL: Take note of the POP address provided by these services; IMAP access is not supported.
To set up additional accounts in the Outlook Web App, do the following:
Click Options in the top-right corner.
Select See All Options to see all the options in Outlook Web App that you can manage yourself.
Account on the left navigation is automatically selected and the options to manage your account are displayed on the right pane.
Click Connected Accounts from the right pane.
Click New under Connected Accounts.
The New Account Connection window appears.
Enter your e-mail address and password.
Click Next and then click Finish.