Please note that not all accounts have POP3 access yet, as it has only been introduced to a handful of users. To see if your account is POP-ready, log in and look for "New Features!" in red on the top-right of the window. If it isn't, this hint won't be very useful to you.
- Open up Mail.app and press Command+Comma to invoke the Preferences window.
- Switch to the "Accounts" pane and press the + button in the lower-left corner.
- Under "Account Information", fill out the following information:
- Account Type: POP
- Email Address: username@gmail.com
- Incoming Mail Server: pop.gmail.com
- Username: username@gmail.com
- Password: password
- Select "Add Server..." from the "Outgoing Mail Server (SMTP)" pop-up menu. Here are the details for it:
- Outgoing Mail Server: smtp.gmail.com
- Server port: 465 or 587
- Use Secure Sockets Layer (SSL): Yes
- Authentication: Password
- User Name: username@gmail.com
- Password: password
- Dismiss the window by pressing "OK."
- Back in the "Accounts" pane, switch to the "Advanced" tab and check the box marked "Use SSL" towards the bottom.
- The rest of the process is short and sweet, and merely involves changing your Gmail preferences to enable POP access.

