No software to install, no changes to make. Simply sign-up and enjoy a clean mailbox. Our automated cleaning software visits your mailbox multiple times per hour and "cleans" it of unwanted messages, based solely on your custom preferences. Restrict or permit any type of email message. Filtered email can be deleted, or safely preserved for later review from any web browser - outside your mailbox. And, you can manage filtered messages right from your email client, using our Filtered Message Summary reports.