Mail.app rule to archive messages in Gmail

This is a great little tip that Mark Frauenfelder posted over at BoingBoing today. Make instantaneous backups of your non-Gmail email accounts to Gmail by creating a simple rule in Mail.app. Go to Mail—>Preferences and select the Rules tab. Click the Add Rule button. Name the new rule something like "gmail archive." Then, under the conditions section for each of your email addresses, choose Any Recipient, Contains, and your email address for that account. Then for the actions section choose redirect message and set "to" to your Gmail account.

Sure, iSync will sync your email to your iDisk if you like, but you have to run iSync for that to happen. This automatically backups your email as you receive it. Nice.