*
* Each filename in the iterator is an absolute filename, (the initial
* component will match notmuch_database_get_path() ).
*
* Each filename in the iterator is an absolute filename, (the initial
* component will match notmuch_database_get_path() ).
* For the original textual representation of the Date header from the
* message call notmuch_message_get_header() with a header value of
* "date".
* For the original textual representation of the Date header from the
* message call notmuch_message_get_header() with a header value of
* "date".