Eli Zaretskii <eliz@gnu.org> writes:

>> Cc: Lars Ingebrigtsen <larsi@gnus.org>, 17780@debbugs.gnu.org,
>>  Stefan Kangas <stefankangas@gmail.com>, Jan Beich <jbeich@vfemail.net>,
>>  67931@debbugs.gnu.org
>> From: Illia Ostapyshyn <illia@yshyn.com>
>> Date: Mon, 06 May 2024 20:46:33 +0200
>> 
>> Sorry, forgot to attach the patch, sending it with this email.
>
> Thanks, I'm adding Eric to the discussion.

Thanks!

I've realized that reusing certfile parameter for signing will have
unintended side-effects when encrypting and signing a message.  When a
single signencrypt MML tag is used for both this results in all
certfiles passed to both `smime-encrypt-buffer' and `smime-sign-buffer'.

I'm sending a new patch that introduces a parameter called chainfile for
signatures instead.