21 Sep
2018
21 Sep
'18
11:52
On 09/20/2018 11:52 PM, Carlos E. R. wrote:
Well, yes it was, back in 1982; see RFC821 and /etc/services but that was "simple" and 'unauthenticated' and "insecure" and hence it was hacked and abused, so we don't use that any more. We use TLS instead. Notice that port 25 also can use TLS. The use of submission ports can not be justified because of need to use TLS.
TLS or STARTTLS? I would expect STARTTLS as it has to be able to handle servers that don't support TLS. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org