From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.help Subject: Re: Insecure Mail Sending Warning Date: Sat, 24 Oct 2020 11:56:15 +0200 Message-ID: References: <87tuukjsx2.fsf@robertthorpeconsulting.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20068"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs@gnu.org To: Robert Thorpe Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Oct 24 11:57:33 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kWGIm-00057S-OD for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 24 Oct 2020 11:57:32 +0200 Original-Received: from localhost ([::1]:57564 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kWGIl-0000cv-LK for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 24 Oct 2020 05:57:31 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54752) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWGHg-0000bv-Cz for help-gnu-emacs@gnu.org; Sat, 24 Oct 2020 05:56:24 -0400 Original-Received: from mail-wm1-x32c.google.com ([2a00:1450:4864:20::32c]:55631) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kWGHe-0000AH-OD for help-gnu-emacs@gnu.org; Sat, 24 Oct 2020 05:56:24 -0400 Original-Received: by mail-wm1-x32c.google.com with SMTP id a72so4686477wme.5 for ; Sat, 24 Oct 2020 02:56:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:mail-copies-to:gmane-reply-to-list :date:in-reply-to:message-id:mime-version:content-transfer-encoding; bh=fwLLlvUQD35M1NSdWHFr9Aj5h6BjSA1d9RD1I4LO3UM=; b=XTqzAurSpXzeJJoarcaVNe0XyW67OopnJgPiFq82DrZT2jwI0/NnRUq9edMaqxkhXD 29282K1e32RCSC2H4AKun5PBw+N3k7HJSr6Unwt6IgiPzTs1SvV5mMj5imagLvVRzTGL 4CVBTJEgv5oqGSdVEPgw6Y5GwgzT9OX5VhD5/l5FXRt/qBUtAdABRSczzhUwRVODAmt0 ucXCs93/g+IikNVVhhvuv5sg1Vwc9WITqjRY1WbLMhL9GbRzowXr/0Oa6WafezvULrvy G2HW+hOy+9TCuS2fOXL02cGliDoNpz3DC0ME+mMIQGRpmJoO+DNG6QhJbAqRu1KOBdHF yacw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:mail-copies-to :gmane-reply-to-list:date:in-reply-to:message-id:mime-version :content-transfer-encoding; bh=fwLLlvUQD35M1NSdWHFr9Aj5h6BjSA1d9RD1I4LO3UM=; b=P7QXqtv3F4VwMl8GgauAiYrbDjsfMAQ/FdLuVCDRsG52XnfUG8+kayPftAegltx5SG 0c5xnDG/oA1c1y9ByKvLzXVXOKD3m72E2tANNwK5uQMHcLwQ+aXDoaKjfOy4haqhRNWu sLshAlraUBbIftZTI69tZna77KM2s3Tz93FAV120Z2zCh8gHVjrcLzbAMoUeylcYbNlU Mju7GE05fmNPrmww/ublyN5Szz8P3WUj5mBnVjOLS52E1YNZ58OY0e+IX0SHnRkgmx4z L8XutmUHiDrYDcPq3bpFGhex12fcImIxRfLFOpLf8WKVqpMxhII9IGU26mJqQhrMlyZ6 StGA== X-Gm-Message-State: AOAM531rcLWroZUO06EqieUDqQJ8QSonUYcbkwbR4MLZwqyG6SX+BJvQ epZ4tfJ1Dz/biapb8omP0iTLO4CjCmw= X-Google-Smtp-Source: ABdhPJyyjESBlVxZV1mfRgmY9YwHwiDMou/WQOCs7+NmM5hzYMHvy8L5UvjRsGhEr0y4eosKud5fYg== X-Received: by 2002:a1c:383:: with SMTP id 125mr4951912wmd.175.1603533380154; Sat, 24 Oct 2020 02:56:20 -0700 (PDT) Original-Received: from rpluim-mac ([2a01:e34:ecfc:a860:8d6e:d31:eb45:4a86]) by smtp.gmail.com with ESMTPSA id m14sm9792006wro.43.2020.10.24.02.56.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2020 02:56:19 -0700 (PDT) Mail-Copies-To: never Gmane-Reply-To-List: yes In-Reply-To: <87tuukjsx2.fsf@robertthorpeconsulting.com> (Robert Thorpe's message of "Sat, 24 Oct 2020 02:48:09 +0100") Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=rpluim@gmail.com; helo=mail-wm1-x32c.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:124686 Archived-At: >>>>> On Sat, 24 Oct 2020 02:48:09 +0100, Robert Thorpe said: Robert> Where is the URL of my mailserver. >>=20 Robert> Can I fix this or is the problem on my mail provider's side? >>=20 >> The problem is on the mail provider's side, I think. Robert> Thank you. I'll contact my provider and ask them about it. >> I=CA=BCm kind of surprised that a real mail provider still enables >> TLS1.0. You can test what it supports using >>=20 >> gnutls-cli -p 587 Robert> That command doesn't seem to give useful output. It says: >> Processed 148 CA certificate(s). >> Resolving ':587'... >> Connecting to '81.17.254.9:587'... >> |<1>| Received record packet of unknown type 50 >> *** Fatal error: An unexpected TLS packet was received. Sorry, thinko on my part. Try gnutls-cli -starttls-proto=3Dsmtp -p 587 This will connect using TCP and then try to upgrade to TLS with a STARTTLS command. I just tried it to your mailserver and it matches the warning from Emacs: - Status: The certificate is trusted. - Description: (TLS1.0-X.509)-(RSA)-(AES-256-CBC)-(SHA1) Robert --=20