Period tracking app Flo is developing a new feature called "anonymous mode" that will allow users to remove their name, email address, and technical identifiers from their profile.

My Slate email address is will.oremus@slate.com. If you email willoremus@slate.com, your message will bounce. There is no willoremus@slate.com.

This grace period is customizable from a default 5-second delay up to 30 seconds – a generous window to catch those email blunders. Setting up the "Undo Send" Feature in Gmail ...