Can you actually recall an email that shouldn't have been sent?

Message recall only reliably works if both sender and recipient are on the same Exchange/M365 organisation, both are using Outlook desktop, and the recipient hasn't already opened it — so treat it as a long shot, not a guarantee. A faster fix is often to phone or message the recipient directly and ask them to ignore or delete it.

Coach's tip: set a one to two minute "delay delivery" rule in Outlook as a permanent safety net, so genuine mistakes never actually leave your outbox.