Maybe you mean 25 or something else? Port 80 is for HTTP. And what does a secure port mean? If you want people to be able to talk through a port you have to open it. The number doesn't matter.
By "secure port", I mean forcing encryption of all over-the-wire traffic. It's happening now in many cases with STARTTLS (modulo utter brokenness of the CA and SSL/TLS systems), but that's still only opportunistic.
And of course, encrypting payloads would be vastly preferable. Headers as well other than absolutely required for delivery.
By "secure port", I mean forcing encryption of all over-the-wire traffic. It's happening now in many cases with STARTTLS (modulo utter brokenness of the CA and SSL/TLS systems), but that's still only opportunistic.
And of course, encrypting payloads would be vastly preferable. Headers as well other than absolutely required for delivery.