;; 0 date, 1 subject, 2 from, 3 sender,
;; 4 reply-to, 5 to, 6 cc, 7 bcc, 8 in-reply-to, 9 message-id.
(setq date-string (elmo-imap4-nth 0 value))
;; 0 date, 1 subject, 2 from, 3 sender,
;; 4 reply-to, 5 to, 6 cc, 7 bcc, 8 in-reply-to, 9 message-id.
(setq date-string (elmo-imap4-nth 0 value))