My UT server has been up for a couple days. An account manager forwarded an email from a customer who has been trying to send us email. It showed "Quarantine Digest for username@company.com" and how to release it. I wasn't expecting emails sent to people. Also, the link was for an internal address and not publicly accessible. It only confused and frustrated non technical people.
Maybe it is a good idea, but I'm just surprised.
I uninstalled my UT server because of this.