Robert - eLists wrote:
John What stops them from submitting on port 25 is admin-ing it so that "no smtp auth" is available on port 25 And, isn't port 465 designated for ssl and smtp auth ? - rh
465 is SSL, but it isn't the port you should be using. Do TLS via 587 or 25. I can't remember the problem with 465, I think it's mostly just a thing that MS uses and is supposed to be phased out in favor of TLS for general use.