These were indeed Lincoln’s words to the lethargic leader of the Army of the Potomac as he staggered towards Richmond in the Peninsula Campaign – words the general never read. Lincoln is known for having many files of letters that he never sent, a tactic I find very useful in modern email. It’s easy to save, but you can’t unsend.
When you need to bring the hammer down by email, drafts can help you distill your words to the ones that matter, giving satisfaction to your venting without adding fuel to the fire. By saving your drafts instead of deleting them, you also save the passion you put into it. Now give it a rest. Come back with a clear eye and start again on a fresh page, focusing on the core issues at hand.