SaneBox - Email Management for Any Inbox. Sanebox is cloud software that analyzes your mail boxes and sorts them, allegedly to help keep a clean inbox, and properly deal with the rest. The only problem is that you don't need it. If your inbox is full of thousands of emails, it is your fault. You can tame your inbox with that unused tool sitting on your head, the brain. Just discipline yourself to deal with every email coming in throughout the day. If you can't put it in a logical folder, or deal with it right away, create a Pending folder, and make it part of your day, whenever you have a free moment, to go through everything in the folder. Use the tool between your ears. This isn't rocket science people. Use your brain. Jeez.