Back in 2008 with N360 4.0 and 64bit version of Outlook below post was discussed about 64bit outlook Client Inegration. It was posted as a reply that " Outlook 2010 will be supported in the future releases" Here we are 2 versions later and 64bit outlook client integration is still not supported. When will this start being supported?
http://community.norton.com/t5/Norton-360/N360-4-0-and-64bit-version-of-Outlook/m-p/213800
Norton Antispam doesn't support Client Inegration with Outlook 2010 (32/64bit edition). We do support most of the other Outlook versions
Outlook 2010 will be supported in the future releases