If you take a look at this webpage about blocked ports, you'll notice that Spectrum says nothing about blocking port 23 but they do:
https://www.spectrum.net/support/internet/blocked-ports
My ISP blocks port 25. Thing is, when I asked them about it they were not
even aware they were doing so. I think whoever they are buying the
bandwidth from is actually doing it.
Mike
* SLMR 2.1a * A preposition is what you don't end a sentence with. Um.
--- SBBSecho 3.12-Linux
* Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (618:250/1)