Sometimes after you send an email, panic sets in:
“Did I sound too mean?” “Should I have added that document?”
Pluto mail is a new service that hopes to fix these stressful situations.
The free program syncs with your inbox and lets you accomplish four specific tasks: set expiration timers on messages, unsend emails, add read receipts and edit sent messages before someone else opens them.
Pluto is still in beta but we were able to try out.