Hi folks,

I'm trying to expire some of my mails with 'immediate with nnimap, but I
think it actually does not really work. It only work with mail that are
before yesterday. I see the following as the potential problem:

(defun nnimap-find-expired-articles (group)
  (let ((cutoff (nnmail-expired-article-p group nil nil)))
    (when cutoff
      (with-current-buffer (nnimap-buffer)
	(let ((result
	       (nnimap-command
		"UID SEARCH SENTBEFORE %s"
		(format-time-string
		 (format "%%d-%s-%%Y"
			 (upcase
			  (car (rassoc (nth 4 (decode-time cutoff))
				       parse-time-months))))
		 cutoff))))
	  (and (car result)
	       (delete 0 (mapcar #'string-to-number
				 (cdr (assoc "SEARCH" (cdr result)))))))))))


If `nnmail-expiry-wait` is 'immediate then (nnmail-expired-article-p
group nil nil) returns (current-time), which is translated in e.g.
13-JAN-2017 by `nnimap-find-expired-articles`. So if the message is
expired today, well, it does no seem to work.

Sounds like a little bug to me, and I'm hoping that someone will help me
fixing it before I commit random garbage to the trunk. ;-) It has been a
long time since I played on that!

-- 
Julien Danjou
# Free Software hacker
# https://julien.danjou.info