Multiple email recipients for Email Alerts

I recently setup HPSIM 7.3 on Windows 2008.

I am having an issue getting email alerts (in the Automatic Events Handling) to go to more than one recipient in the 'To:' field (or more than one in the CC: as well).

As a work around, I guess I can create more than one Event - but I figure there must be a way to just have all 3 recipients in one.

I tried the typical xxxx@xxxxx.com; yyyy@xxxxx.com; zzzzz@xxxxx.com

But it comes back with an errors indicating it does not recognize the email format (that I may be missing the '@').

When I put just one email, it works fine.

Any ideas?