Multiple email targets?

I recently upgraded my Vera 3 to UI7, and did a complete wipe and reloaded everything. I used to have a “Master Alert” scene, with a custom message, and it would send, via SMTP, to mutliple e-mail address. I have been unable to recreate this scene; if I put more than one email address in the TO field, one or more the messages doesn’t get received. Does that field support multiple addresses, if so, what’s the proper format?