How do I delete a corporate e-mail account?
What phone do you have? Is it a company phone? If it is, you may not be able to delete the account.
If it is your own phone, and you no longer need the company email, it should be a matter of finding the account list for the phone (Settings, Accounts - or Settings, Email - knowing which phone you have will help up give you more specific steps) and removing, deactivating, deleting the account.
If it's the Google account that is the backup and app connection for the phone, you may lose much of the functionality until you set up an alternate Gmail address/account.
