I have recently setup an inhouse e-mail server (Kerio) on XP Pro SP3. Network is a P2P with a Watchguard Firebox SOHO6 and Qwest DSL M1000 in bridged mode with static IP. Mx is configured correctly and appears to working fine. DNS addresses are Qwest ISP for primary and secondary.
Prolem is that I can access network from outside using FQDN and IP but not from inside.
However I can't connect using public IP with ping, tracert, HTTP or IMAP on the inside.
Can connect using internal private IP.
Have disabled firewalls and used host file to no effect.
This is necessary inorder to allow laptop to connect to the e-mail server while off the internal network with changing host files or Ip settings.
I'd prefer to not setup an internal DNS server (BIND, etc.), thoughts?