Anger and email — A very bad combination that usually leave an impulsive emailer in a state of regret.
But there is hope. The big three email providers all have a method for undoing the outbox.
Gmail: In the Web interface, check the settings tab to enable Undo Send. This action gives options for 5, 10, 15, or 30 seconds of undo time.
Outlook: Similar to Gmail, Microsoft's Outlook has an option called Let Me Cancel Messages I've Sent, which allows the same time allotments.
Yahoo: On the iOS and Android mail apps the undo setting is on by default, but only for three seconds.
