+Limited support for S/MIME messages
+
+ Signature verification is supported, but not decryption. S/MIME
+ signature creation and S/MIME encryption are supported via built-in
+ support in Emacs. S/MIME support is not extensively tested at this
+ time.
+
+Command Line Interface
+----------------------
+
+`notmuch show` now supports verifying S/MIME signatures
+
+ This support relies on an appropriately configured `gpgsm`.
+