Path: csiph.com!weretis.net!feeder9.news.weretis.net!news.misty.com!.POSTED.veps.esmtp.org!not-for-mail From: Claus =?iso-8859-1?Q?A=DFmann?= Newsgroups: comp.mail.sendmail Subject: Re: Mandatory STARTTLS ? Date: Fri, 30 Jan 2026 00:57:46 -0500 (EST) Organization: MGT Consulting Sender: Message-ID: <10lhh8q$3tp$1@news.misty.com> References: <10lgddc$1ud8$1@gal.iecc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Injection-Date: Fri, 30 Jan 2026 05:57:46 -0000 (UTC) Injection-Info: news.misty.com; posting-host="veps.esmtp.org:155.138.203.148"; logging-data="4025"; mail-complaints-to="abuse@misty.com" Mail-Copies-To: never X-Newsreader: trn 4.0-test77 (Sep 1, 2010) Originator: ca@x2.esmtp.org (Claus Assmann) Xref: csiph.com comp.mail.sendmail:8231 John Levine wrote: > In the IETF last call about the SMTP applicability statement, we are > having a long argument about making STARTTLS mandatory. That is/was a mess. > The other group says there are still corner cases where plain text is > useful, e.g., dusty printers saying they're out of paper, or mail to > postmaster telling him that his cert has expired, and if you want to Or TLS versions/implementations/... incompatibilities or ... > mandate TLS on your own system, you have MTA-STS and DANE. And other options, e.g., an admin can configure sendmail that way if they think it is needed. > What do you think? Any chance sendmail would completely remove non-STARTTLS > mail? No.