Re: smtp example with openssl s_client

David Haguenauer <[email protected]> Wed, 17 Dec 2025 20:51:58 +0000

Newsgroups	gmane.mail.mutt.user
Message-ID	<0100019b2e157b73-1c4d9c58-75ef-49ce-91fd-43dc4158e68f-000000@email.amazonses.com>

* Claus Assmann <[email protected]>, 2025-12-17 18:25:02 Wed:
> On Wed, Dec 17, 2025, Matthias Apitz wrote:
> > $ openssl s_client -connect smtp.1blu.de:465
> > XXXXXXXXXXXXXXXXXXXX
> > RENEGOTIATING
> Is there an 'R' in the XXX?
> 
> AFAIR that triggers the "RENEGOTIATING" from s_client.
> 
> Check whether there's some way to turn that off
> (it's not in the man page on my machine).

That must be it. It looks like `openssl s_client -quiet' will disable
the interactive interpretation of "R" (and some other commands) at the
start of a line. My man page for `s_client' says:

----
When used interactively (which means neither -quiet nor
-ign_eof have been given), then certain commands are also recognized
which perform special operations. These commands are a letter which
must appear at the start of a line. They are listed below. [...]

       R   Renegotiate the SSL session (TLSv1.2 and below only).
----

-- 
David Haguenauer