On 10/04/21 07.52, Junio C Hamano wrote:
Isn't SMTPS (running SMTP over SSL encrypted connection) the one that was once deprecated until it got resurrected)? STARTTLS is not all that SMTP specific---POP and IMAP can also start in cleartext and upgrade with STARTTLS the same way, no?
Wikipedia entry on Opportunistic TLS [1] said that STARTTLS is not specific to SMTP, but also to various protocols:
The STARTTLS command for IMAP and POP3 is defined in RFC 2595, for SMTP in RFC 3207, for XMPP in RFC 6120 and for NNTP in RFC 4642. For IRC, the IRCv3 Working Group has defined the STARTTLS extension. FTP uses the command "AUTH TLS" defined in RFC 4217 and LDAP defines a protocol extension OID in RFC 2830. HTTP uses upgrade header.
[1]: https://en.wikipedia.org/wiki/Opportunistic_TLS -- An old man doll... just what I always wanted! - Clara
