Since Gmail stores your mail in the "cloud", it is not downloaded to your computer (stored locally). Google backs up data for the services it offers. While most of us will NOT need to store mail locally, some may have a reason: for example, staff who are planning to leave the University and would like to leave a copy of their emails with a department. We don't recommend following these instructions unless you have a compelling reason.
Overview
To back up email locally, you will need to configure an email client to download your mail. (Below, we provide instructions for backing up your mail with Thunderbird, which is available for Mac, PC, and Linux.) You are going to set up the email client to download your emails using POP, which is a mail protocol - a way of downloading your mail. When you would like to backup your messages, you will open the client and wait for it to download your mail.
Step by Step Instructions for Thunderbird
Thunderbird is a free mail client for Mac, Windows, and Linux. These instructions will show you how to connect to Thunderbird via POP and backup your mail locally (on your computer).
Follow Google's instructions to enable POP in your Gmail settings. Pay attention to the option of what to do with Gmail's copy: it should say "keep Gmail's copy in the inbox." https://mail.google.com/support/bin/answer.py?answer=13273
Download and install the Thunderbird mail client from http://getthunderbird.com. These instructions were written for version 9 but may work in other versions.
When prompted, enter your name, email address and password, and click Continue.
You will see a Manual Config button appear - click it.
Use the following settings:Incoming: POP3 - Incoming server hostname: pop.gmail.com - Incoming port: 995Outgoing: SMTP - Outgoing server hostname: smtp.googlemail.com - Outgoing port: 465Username: Your FULL Brown email address (you will have to add the @brown.edu)
Click Re-test. After confirming your information, the Advanced Config button will become enabled. Click the Advanced Config button.
In your Server Settings, uncheck the boxes next to "For at most __ days" and "Until I delete them", but make sure the "Leave messages on Server" box is checked. This will ensure that your emails will not be deleted from the server if you choose to delete mails from your backup.