All emails generated and sent in your Jackrabbit database are sent from our servers.
Our domain is jackrabbittech.com and our email servers IP addresses are:
In order to help ensure proper delivery of emails to your customers' inboxes, they can add senders of legitimate emails (such as your organization) to their Whitelist, also called the Approved or Safe Sender list.
Curious "how" to whitelist? Or tell your customers how to whitelist? Here is a great reference page to share with them: How to Whitelist Email.