with the same message (i.e. the files have identical Message-ID). A
`folder:` search will match the folder of any of the files. The
`--output=files` option outputs all the files of all matching messages.
+
+## Shouldn't notmuch support inline PGP?
+
+[Why it might not be a good idea](https://dkg.fifthhorseman.net/notes/inline-pgp-harmful/)