Hi,

I made a little Emacs advice for notmuch-show-insert-part-multipart/signed to deal with mails signed with SMIME mechanism. It calls openssl to create missing :sigstatus.

Here it is : https://github.com/bateast/notmuch-openssl
(it is an org-file, in Emacs, use org-babel-tangle on it to extract the .el).

You are welcomed to make any comment.

Thanks,

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