CSI Survey - Is this real?

I received an email titled "How well did IS&T Service Desk serve you?" from csisurveymailer@thinkhdi-csi.com. Is this a legitimate email?

Yes! This email is valid.

Because IS&T is committed to providing exceptional service, once a service ticket has been resolved you may receive a survey to rate your experience. This is a legitimate email that may look like the following:

Thank you for taking the time to respond!