The best approach to have multiple recipients receive email messages is to setup a mail distribution list in Exchange or equivalent.  Once you have that established, you can setup the corresponding email address for that mail distribution list in SupportAssist as either Primary or Secondary contact.  
I am looking for a way to either add a mailing list or other users to the email settings so that multiple members of our team will be notified.
Can I add a mailing list so that SupportAssist mails status updates to multiple 
people?