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Improved S/MIME support for Gnus in Emacs

ExtendSMIME is designed to be used with Gnus in Emacs. It enhances DefaultEncrypt (emacs-default-encrypt) to support S/MIME (Secure/Multipurpose Internet Mail Extensions) via LDAP (Lightweight Directory Access Protocol). Before a message (e.g., email) is sent, ExtendSMIME searches for missing certificates via LDAP and imports them into gpgsm. When certificates for all recipients are available, DefaultEncrypt automatically encrypts the message. For details and instructions on how to use ExtendSMIME, please refer to the home page or read the comments in the source file, jl-smime.el.


Install the latest version of emacs-extend-smime as follows:

guix install emacs-extend-smime

Or install a particular version:

guix install emacs-extend-smime@3.3

You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.