Spam Filtering
R'Mail offers automatic spam filtering. All incoming e-mail will go through UCR's graylisting and realtime blocking list antispam filters. Messages that are not blocked as spam by UCR's antispam filters will then go through Google's spam tagging filters. Messages that are identified as spam will be labeled as "Spam," archived, and removed from your Inbox. Messages marked as spam will remain in your account for 30 days unless you delete them.
You can access your spam messages by clicking on Spam in the left hand menu in R'Mail. Since no spam filter is 100% accurate, it is recommended that you periodically check your Spam folder for legitimate e-mail messages.