Having an issue with the from name lately, The email will take the name from voice mail networked users and the domain from the vm networked systems. I ahve a some sites with corruption in the vm networked users where 2 appearances of the mailbox appear, one without the pni. Took the name from the pni correct one and the email address from the mailbox, wrong or right net vm user...not sure. The Mailbox had the correct user name as well as the non pni net vm user.
Ha, just reminded to check the one site that didn't allow vpn access. Sent the customer the list of cluster wide errors, most were in one site where there were many that contained the wrong pni. I'm not the orignal installer, I think someone had a wrong value before they corrected it.