By donmc, 12 December, 2008 Topic Tips & Clues 25 (for SMTP e-mail) 443 (for HTTP SSL for Remote Web Workplace and OWA) 4125 (required for Remote Web Workplace) 1701 (for LT2P), 1723 (for VPN PPTP) 4125 and 3389 (for Remote Desktop administration and terminal services connections)
