On Sun, 08 Jul 2012 16:36:20 +0200, Slavko wrote: > Dňa Sun, 8 Jul 2012 11:59:50 +0000 (UTC) Camaleón <noela...@gmail.com> > napísal: > >> > By mi search, the standard is SMTP + STARTTLS and not SSL + SMTP. > >> There are different implementations, all of them standarized: >> >> While imaps (tcp/993), pop3s (tcp/995) and smtps (tcp/587) make use of >> specific computer ports, imap, pop3 and smtp using "STARTTLS" keep the >> same ports that their non-encrypted counterparts (143/110/25) to >> transmit clear text credentials protected. > > if smtps is standardized, then why i see this: > > grep 587 /etc/services > submission 587/tcp # Submission [RFC4409] > submission 587/udp > > but: > > grep smtps /etc/services > ssmtp 465/tcp smtps # SMTP over SSL
You can query for both in one line: sm01@stt008:~$ grep -e 587 -e 465 /etc/services submission 587/tcp # Submission [RFC4409] submission 587/udp ssmtp 465/tcp smtps # SMTP over SSL What's what you don't like here? The old port could be still there for legacy/backward compatibility issues. > can you please tell me the RFC about SMTPS? http://en.wikipedia.org/wiki/SMTPS >> Well, when opening ports is not possible (consider a restricted >> environment) or as Wikipedia¹ explains, independency and transparency >> seen as a plus when using this extension. > > i know about differences both of the implementations. Fine, but you asked. Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/jtc7dj$s8h$9...@dough.gmane.org
