Customize Cisco Unified Messaging emails

Would like the ability to customize the email that comes from Cisco Unity Connect. These emails by default look a lot like a typical phishing email and meet the items we warn against. These emails have No Salutation, No Signature, No Disclaimer and an Attachment. We do have users that mark these as Spam resulting in missed messages.

It would be nice if we could put our corporate logos, perhaps a disclaimer and make these more user friendly.