Default: ``true``.
-**crypto.gpg_path**
- Name (or full path) of gpg binary to use in verification and
- decryption of PGP/MIME messages. NOTE: This configuration item is
- deprecated, and will be ignored if notmuch is built against GMime
- 3.0 or later.
-
- Default: ``gpg``.
-
**index.decrypt** **[STORED IN DATABASE]**
Policy for decrypting encrypted messages during indexing. Must be
one of: ``false``, ``auto``, ``nostash``, or ``true``.