We have 8.8 w/sp1 loaded with the email delivery scanner loaded also. But I have users complaining that oiutlook is slow when navigating with in outlook 2007. when I removed the Mcafee plug-in in outlook, the issue went away.
Should I be excluding any in the policy related to Outlook for this issue.
You can try changing the level of sensitivity in the scan if you have not already configured it. If it is anything other than disabled, it may be reaching out to McAfee GTI (heuristic db).