Hello TE,
The UM was forward only and that was on only 2 mailboxes. We did try it with VPIM disabled. I had been noticing that the CPU usage was running between 90 to 100% all the time with only 2 active calls. I had asked a tech from Mitel and she implied that that was acceptable. I have installed quite a number of these and have only experienced that when they were SIP of SSH attacks.
I ended up calling into Mitel again and got the right person this time. He escalated the issue to level 3 and they found all kinds of cool things. He found that the CPU was primarily being used up by AVDAP so he started digging around there, found several emails stuck in queue most likely corrupted he said. He cleared those out and also discovered that Enhanced Reporting in the UVM was potentially causing an issue. Once her cleared emails and disabled the Enhanced reporting the CPU usage came down to normal.
I am now receiving voicemail to email. They emphatically told me that VPIM with an offsite mail server will not work and is not supported, mostly revolving around DNS issues. I do however have it working so hopefully there will be no problems that require support.
Also, apparently this is a potential issue caused by converting an Axxess database even though we saved the Axxess DB tested it, converted to 5000 HX and tested it, there were still some underlying causes that they could not explain.
Thanks for all of the input and suggestions.