Re: [Vagrant Cascadian] Bug#759646: notmuch-emacs: switching mode= to invalid value...

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+From: Jani Nikula <jani@nikula.org>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: [Vagrant Cascadian] Bug#759646: notmuch-emacs: switching mode=\r
+       to      invalid value sends unencrypted mail\r
+In-Reply-To: <87lhq7npcw.fsf@maritornes.cs.unb.ca>\r
+References: <87lhq7npcw.fsf@maritornes.cs.unb.ca>\r
+User-Agent: Notmuch/0.18.1+65~g9f0f30f (http://notmuchmail.org) Emacs/24.3.1\r
+       (x86_64-pc-linux-gnu)\r
+Date: Sat, 30 Aug 2014 10:37:43 +0300\r
+Message-ID: <87k35q2zso.fsf@nikula.org>\r
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+\r
+On Thu, 28 Aug 2014, Vagrant Cascadian <vagrant@debian.org> wrote:\r
+> When sending mail from notmuch-emacs interface, I usually use pgpmine\r
+> signatures, but sometimes I want to send a signed encrypted message, so\r
+> I manually edit the mode=sign to mode=signencrypt ... but if I make a\r
+> typo, i.e. mode=signinvalidencrypt, notmuch happily and without warning\r
+> sends the mail unencrypted.\r
+> \r
+> i.e. #secure method=pgpmime mode=signinvalidencrypt will end up\r
+> sending an encrypted message (with the <>, of course).\r
+> \r
+> It seems like it should error out if the mode= is set to an invalid or\r
+> unknown value, rather than sending mail in the clear.\r
+> \r
+> I've got this set up in ~/.emacs, not sure what all else might be coming\r
+> into play:\r
+> \r
+>  '(message-setup-hook (quote (mml-secure-message-sign)))\r
+>  '(notmuch-crypto-process-mime t)\r
+\r
+I'm inclined to think this is a bug in message-mode. But we should\r
+probably try to see what we could do to mitigate this.\r
+\r
+As a workaround of sorts, I'd suggest not messing with the #secure tag\r
+manually. Instead, you can use mml-secure-message-sign and\r
+mml-secure-message-sign-encrypt to change the mode.\r
+\r
+BR,\r
+Jani.\r