Execute one email/command per play, no matter how many servers

I have a play that is setup to email me once complete with some of the results…the problem is that I get an email for every server I run the play against. For instance, against 1 server I get 1 email. Against 3 servers I receive 3 identical emails.

How can I get a particular task to just execute once at the end of a play no matter how many servers I am running the play against?

Answered it myself.

run_once: true