Primary Store Contact
The primary store contact is set in System > System under Email. This address will receive general notifications about errors for the store.
Location-specific Contacts
A list of contacts can be specified to receive notifications about orders submitted to a specific location. This can be set under System > Shipping > Locations by editing a location and entering addresses under "Emails".
Customer-Facing Email Address
Under System > Store Settings > Contact Information you can set the email address or phone number that is visible to customers when they are prompted to contact the dealer about pricing or availability.