My Exchange 2010 server has five IP addresses. I've got the second one configured as the mail server, and the SMTP receive connector listens only on that address. However, all outgoing SMTP is ...

Knowing the local (or private) and external (or public) IP addresses for your devices can help you keep your network running smoothly and safely.

To find your computer’s MAC address, look for the ‘Physical Address’ entry. This line will display your adapter’s MAC address, which typically looks like a string of letters and numbers ...

I've configured our internal Exchange servers to relay outbound mail through a proxy/firewall. I've noticed that the headers on external emails contain the private IPof the internal mailserver ...