How can I send email alerts to multiple recipiants?

Here is what I have tried,

Select SYSTEM, PREFERENCES, NOTIFICATION, EMAIL
and then I have tried several combinations to get the email to work
like
'steve.montgomerie@icn.siemens.com';'steve.montgomerie@icn.siemens.com'
"steve.montgomerie@icn.siemens.com";"steve.montgomerie@icn.siemens.com"

'steve.montgomerie@icn.siemens.com','steve.montgomerie@icn.siemens.com'

"steve.montgomerie@icn.siemens.com","steve.montgomerie@icn.siemens.com"

steve.montgomerie@icn.siemens.com ; steve.montgomerie@icn.siemens.com
steve.montgomerie@icn.siemens.com , steve.montgomerie@icn.siemens.com


I can send to both email addresses individually but not together

tks

steve