To set up your Android device to check your CC email (Office 365). Note that there are different versions of Android out there, so yours may be slightly different than the screenshots. The relevant settings are the same though.
Go to settings and select "Accounts" or "Accounts and Sync"
When it asks what type of account, select "Exchange" or "Exchange active synch" or "Corporate"
Enter your email address and password. It will attempt to autoconfigure and fail, taking you to a screen where you need to put in the correct settings.
Username: "email@example.com" - this may be different from your email address, or it may be the same.
For example, Jane Doe's email address may be firstname.lastname@example.org and her username may be j_doe. In that case, she'd enter email@example.com here.
if you see a separate field for domain, just leave it blank
After this you should be set, though your Android will ask you to confirm multiple security prompts which look something like the below screenshot. These are warnings to let you know that by setting up the email account, CC email administrators have the power to remotely wipe your device (which is very helpful if your device is ever stolen).
You will also need to select your preferences about what to sync - if in doubt, you can just leave it at the defaults.