Builder.com: Send messages to a list of

I just tried the script provided in the newsletter, but SQL keep saying

“Server: Msg 17963, Level 16, State 1, Line 0
xp_sendmail: Procedure xp_sendmail expects parameter @recipients, which was not supplied.”

What could be wrong? Obviously, it doesn’t like recipients inside a variable, but this was the whole point of the article…

Thanks for your help!