Email is very informal, a memo. But I find that not signing off or not having a salutation bothers me.
Judith MartinMiss Manners herself, while never rude, is given to pulling a fast pinch in the way of a handshake on those who believe in kissing on, not even the first date, but the first sighting.
Judith MartinHonesty has come to mean the privilege of insulting you to your face without expecting redress.
Judith Martin