Don't Miss: The 5 Best Free Emails Clients for iOS.We'll show you how to get started so your email system can be best optimized for your personal needs. Whether you're looking to set a different notification sound for your work and personal accounts, or if you only want to see the most important messages on your lock screen, Outlook allows you to mix and match the settings per email address, putting the notification controls directly in your hands. Luckily, Outlook allows you to do just that. You have multiple email accounts, each for different purposes and with varying levels of importance, so it only makes sense to customize the way your phone alerts you to each account's incoming emails. With email, one size does not typically fit all.