Minor feature: don't send 2 "how not to get disqualified" emails in a row?

[andrewschultz]

I recently registered a likely game and a longshot game now that intents are open.

I got 2 identical emails in short order. It's probably better to have duplicate mails than forget anything.

Is there any easy way to say "if (user entries > 1) { don't send anti-disqualification email }"

...or at least make the email slightly different?