1. Tap Settings > Accounts > Add account > Email. This application might be named Mail on some versions of Android.
2. Type your full email address, for example firstname.lastname@example.org, type your password, and then tap Next.
3. Select Manual Setup
4. Review the settings on the Exchange server settings page and update if necessary.
Email: Make sure your full email address is in this box, for example, email@example.com.
Domain\Username Type your full email address in this box, for example, firstname.lastname@example.org. If Domain and Username are separate text boxes in your version of Android, leave the Domain box empty, and type your full email address in the Username box.
Password: Use the password that you use to access your account (same password you use for your computer)
Exchange Server: The server name for Office 365 for business is outlook.office365.com.
*Note: Make sure the Use secure connections (SSL) box is checked.
5. Tap Done.
*Note: Depending how the Office 365 administrator in your organization set up your account, you might receive a message about additional security features. Select OK or Activate to continue.
On the Set up email page you can change the name of your account. When you're finished tap Done.