Can I run an internal SMTP mail server such as Microsoft Exchange on my LAN behind WinGate, and connect it through WinGate for Internet mail?
To configure WinGate to allow you to Send/Receive from internal SMTP server, you will have to configure special mappings in the SMTP mapping service in Gatekeeper. All you need to do to accomplish this is: Log on to gatekeeper, double click services, SMTP server General tab Check, accept connections on port 25. Check enable default mapping to: Server: enter the address of the network card for the internal SMTP, on port 25. Mappings Tab Press, add Check enable mapping to: Server: ISP’s SMTP Server Name, on port 25. Locations Tab: Check specific locations from where this mapping applies. Included locations: enter the address of the network card for the internal SMTP (the same as the address that you have for your default mapping under the General tab.) Press, add This will cause WinGate to route all traffic coming to port 25 to the machine running your internal SMTP server, unless it is originated by that machine, in which case, it is piped directly to your ISP’s SMTP server.
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