POP (Post Office Mail) is an email protocol that allows you to retrieve, compose, and manage one mail account from another. In other words, POP allows you to read and reply to messages from all of your email accounts in one place. For example, you can use POP to check your Business Mail from your Outlook Express account; or use your AT&T Yahoo! Business Email to access your mail account at work.

For our purposes, we'll focus on using POP to set up a desktop program to check your AT&T Yahoo! Business Email. After you configure your mail program, you can check your AT&T Yahoo! Business Email from that program. Plus, you'll be able to reply to these messages as if you were working from your Business Email account.

Tip: Interested in using your AT&T Yahoo! Business Email to check another email account? Learn how.