I am Dale Hayter, a Microsoft and VMware certified Technical Consultant.

My blog has been built up over the years from my experience of working on an IT helpdesk and also from being out on-site.

Symantec Messagelabs IP Ranges

Here are the IP Ranges to lock down the Receive connector to.

216.82.240.0/20
67.219.240.0/20
85.158.136.0/21
95.131.104.0/21
46.226.48.0/21
117.120.16.0/21
193.109.254.0/23
194.106.220.0/23
195.245.230.0/23
103.9.96.0/22