My situation is this: I have my primary company network, and a server named DMZ-02. I have an application on DMZ-02 that uses outgoing e-mail, but our firewall is set up not to allow the DMZ to access our main network (only the other way around.) So, we have the SMTP server for this application DMZ-02 set to an off-site server, named NEPTUNE-02. This server is set to allow DMZ-02 to use NEPTUNE-02 as a relay (added the address through IIS). Now, this does work, but it is sporadic and I need to restart the SMTP service about once a day on NEPTUNE-02. I am guessing it is a local problem on NEPTUNE-02 but am not sure. Any help would be appreciated.