Our business runs on email. The problem is that it is very easy to say something in email that you might not say to someone’s face, especially if it is heated. Click send, and your angry rant appears instantly in front of them (and anyone else on the distribution). Worse: it can be forwarded globally.
There is one simple rule I have for email, that I share with everyone on my team: if upset, write the email, but don’t click send. “Save as Draft,” then take a walk. Work on something else. Ten minutes, an hour, a day later, come back to it and reread it. Odds are, you’ll re-compose it to be more civil.
And you may just get to keep your job.