When configuring a local security policy using IPSec I have working except the SMTP server. I have blocked all inbound traffic then allowed only the web critical ports access inbound. This works fine accept IIS will not send mail now using the lcoal SMTP server. I have port 25 outbound enabled for both TCP and UDP. I have DNS enabled outbound for UDP and TCP. I have POP 110 enabled. Nothing seems to help. I've read about many other people having this problem, yet I haven't fouund anyone that was able to provide a solution. Any help here?