Distribution Lists?

If one of my fields is customer, and dependent on the customer I would like the filled out forms to be sent to a defined group, can I select numerous customers at a shot and define the distribution list? Or do I have to create a rule for each customer i.e. if customer is x then send response to a,b and c?

You can check this guide on how to send a specific email notification to email addresses: http://www.jotform.com/help/167-How-to-send-to-a-specific-email-address-based-on-a-selection.

If you want to send the notification to multiple recipient addresses, you need to separate the emails by a "comma" followed by a space. If you want to have a email distribution list, unfortunately, we don't have that setting, you need to manually add the email addresses for each notification. Or you can fetch the value of email fields in the form itself using conditional logic. 

Let us know if you need more information on this.

Thank you.