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One of the things that separate the mail back ends from the rest of the
back ends is the heavy dependence by most of the mail back ends on
common functions in `nnmail.el'. For instance, here's the
definition of nnml-request-scan
:
(deffoo nnml-request-scan (&optional group server) (setq nnml-article-file-alist nil) (nnmail-get-new-mail 'nnml 'nnml-save-nov nnml-directory group)) |
It simply calls nnmail-get-new-mail
with a few parameters,
and nnmail
takes care of all the moving and splitting of the
mail.
This function takes four parameters.
nnmail-get-new-mail
will call back-end-save-mail
to
save each article. back-end-active-number
will be called to
find the article number assigned to this article.
The function also uses the following variables:
back-end-get-new-mail
(to see whether to get new mail for
this back end); and back-end-group-alist
and
back-end-active-file
to generate the new active file.
back-end-group-alist
should be a group-active alist, like
this:
(("a-group" (1 . 10)) ("some-group" (34 . 39))) |