``--no-hooks``
Prevent hooks from being run.
+``--world-readable``
+ When writing mail to the mailbox, allow it to be read by users
+ other than the current user. Note that this does not override
+ umask. By default, delivered mail is only readable by the current
+ user.
+
``--decrypt=(true|nostash|auto|false)``
If ``true`` and the message is encrypted, try to decrypt the
message while indexing, stashing any session keys discovered. If