At 16:56 -0700 10 Oct 2022, Junio C Hamano <gitster@xxxxxxxxx> wrote:
Specify how SMTP connection should be entered into encrypted
mode. The valid values are 'ssl' and 'tls'. Any other value
reverts to plain (unencrypted) SMTP. 'ssl' refers to "implicit"
encryption (sometimes calls SMTPS) that uses port 465 or 587 by
default.
There can be only one actual default port for each of the settings and
here that is 465.
Also, port 587 belongs with the 'tls' value. Perhaps saying something
like:
uses port 25 by default, but port 587 is often used as well.
'tls' refers to "explicit" encryption (often known as
STARTTLS) that uses port 25 by default. Despite their names, it
is likely the user is using the newer TLS protocol, not the
deprecated SSL, for the actual encryption protocol either way.
