You’ve just received an email from someone asking for information that you absolutely, positively knew you had sent them?
Yep, the mystery email could be out there just hanging out on a corner in the ether, drinking a beer, talking to other emails and goofing off.
You think you sent it, but didn’t.
At the end of the day hit the Send button and scan the emails you sent. You’ll sometimes discover that the important email you think you sent, wasn’t. Send it right then or put it on your To-Do List for tomorrow.
NOTE: Checking your sent emails is a great idea first thing in the morning after a night of being REALLY mad at someone and drinking. You’ll find out if you stupidly sent the message you know would tell them off. Been there…done that.