McAffee came pre-loaded on my new Dell desktop, and I'm not impressed with the spam trapping module. Yesterday it lost the account settings of the three email accounts I use - no big deal, but a few minutes to re-enter them and re-start. A couple of weeks back it was collecting all the emails from the ISPs, but not releasing them to Outlook and Thunderbird. I slapped it, re-started and then had a hundred to read.
Added to that it assumes that anyone sending me an attached jpg is spam. Grrrrr...