+``--quiet``
+ Do not print progress or results.
+
+``--verbose``
+ Print file names being processed. Ignored when combined with
+ ``--quiet``.
+
+``--decrypt=(true|nostash|auto|false)``
+ If ``true``, when encountering an encrypted message, try to
+ decrypt it while indexing, and stash any discovered session keys.
+ If ``auto``, try to use any session key already known to belong to
+ this message, but do not attempt to use the user's secret keys.
+ If decryption is successful, index the cleartext of the message.
+
+ Be aware that the index is likely sufficient (and the session key
+ is certainly sufficient) to reconstruct the cleartext of the
+ message itself, so please ensure that the notmuch message index is
+ adequately protected. DO NOT USE ``--decrypt=true`` or
+ ``--decrypt=nostash`` without considering the security of your
+ index.
+
+ See also ``index.decrypt`` in **notmuch-config(1)**.
+
+``--full-scan``
+ By default notmuch-new uses directory modification times (mtimes)
+ to optimize the scanning of directories for new mail. This option turns
+ that optimization off.
+
+EXIT STATUS
+===========
+
+This command supports the following special exit status code
+
+``75 (EX_TEMPFAIL)``
+ A temporary failure occurred; the user is invited to retry.