Back Up Your Gmail

Based on the announcement of gmail data being lost for a small number of users it makes sense to Back Up Your Gmail:

1) Read Google’s Help document on POP access to your Gmail account.

2) Configure an account on your mail client for your gmail account. - IMPORTANT- Build a separate account. If you’re using Outlook, make sure this is a standalone PST file. If you’re using mail.app or Thunderbird, make sure this is a standalone account.

Another description: How to use Outlook to backup your Gmail account