Help needed: nnmaildir and expire-group parameter.

[Fernando de Morais <fernando.morais@academico.ifpb.edu.br>]

Hello everyone,

According to the manual[1][2], `nnmaildir' uses its own group parameters
to handle expiration.

Excepting `nnmail-expiry-wait(-function)' variables, to handle
expiration per group, the user needs to set values for `expire-age' and
`expire-group' parameters.  Ok, so considering the snippet below:

#+begin_src emacs-lisp
  (customize-set-variable 'gnus-parameters
                          '("nnmaildir:inbox"
                            (expire-age . 0)		         ; <-- Here
                            (expire-group . "nnmaildir:trash"))) ; <-- Here
  (customize-set-variable 'gnus-secondary-select-methods
                          '((nntp "news.gwene.org")
                            (nnmaildir ""
                                       (directory "~/Mail/")
                                       (target-prefix "")
                                       (get-new-mail t))))
  (customize-set-variable 'gnus-select-method '(nnnil ""))
  (customize-set-variable 'gnus-total-expirable-newsgroups
                          (regexp-opt '("nnmaildir:trash")))
#+end_src

Unfortunately, the expired mail in `nnmaildir:inbox' does not move to
the `nnmaildir:trash' group, its stays, marked as expirable, in the
original one.

If I drop the `(expire-age . 0)' in favor of something like
`(expiry-wait . immediate)', which according to the manual will be
respected by `nnmaildir', instead of moving the mail to the configured
expiry group, it will delete it.

I tested defining an expiry group from another back end (thus from
another server); from another `nnmaildir' server; and tweaked
`expire-age'.  All this through, alternatively, the `gnus-parameters'
variable and from `gnus-group-edit-group-parameters' interface, but
without success.

So, what am I doing wrong?  Did I miss something?

Can anyone help me with this configuration?  I'll happily share any
further details about my actual settings, if needed.

Thanks in advance.


Footnotes:
[1]  (info "(gnus) nnmaildir Group Parameters")
[2]  (info "(gnus) Comparing Mail Back Ends")

-- 
Regards,
Fernando de Morais.