Info Catalog gnus: Mail Sources gnus: Getting Mail gnus: Fancy Mail Splitting

gnus: Mail Back End Variables

 
 6.4.5 Mail Back End Variables
 -----------------------------
 
 These variables are (for the most part) pertinent to all the various
 mail back ends.
 
 ‘nnmail-read-incoming-hook’
      The mail back ends all call this hook after reading new mail.  You
      can use this hook to notify any mail watch programs, if you want
      to.
 
 ‘nnmail-split-hook’
      Hook run in the buffer where the mail headers of each message is
      kept just before the splitting based on these headers is done.  The
      hook is free to modify the buffer contents in any way it sees
      fit—the buffer is discarded after the splitting has been done, and
      no changes performed in the buffer will show up in any files.
      ‘gnus-article-decode-encoded-words’ is one likely function to add
      to this hook.
 
 ‘nnmail-pre-get-new-mail-hook’
 ‘nnmail-post-get-new-mail-hook’
      These are two useful hooks executed when treating new incoming
      mail—‘nnmail-pre-get-new-mail-hook’ (is called just before starting
      to handle the new mail) and ‘nnmail-post-get-new-mail-hook’ (is
      called when the mail handling is done).  Here’s and example of
      using these two hooks to change the default file modes the new mail
      files get:
 
           (add-hook 'nnmail-pre-get-new-mail-hook
                     (lambda () (set-default-file-modes #o700)))
 
           (add-hook 'nnmail-post-get-new-mail-hook
                     (lambda () (set-default-file-modes #o775)))
 
 ‘nnmail-use-long-file-names’
      If non-‘nil’, the mail back ends will use long file and directory
      names.  Groups like ‘mail.misc’ will end up in directories
      (assuming use of ‘nnml’ back end) or files (assuming use of
      ‘nnfolder’ back end) like ‘mail.misc’.  If it is ‘nil’, the same
      group will end up in ‘mail/misc’.
 
 ‘nnmail-delete-file-function’
      Function called to delete files.  It is ‘delete-file’ by default.
 
 ‘nnmail-cache-accepted-message-ids’
      If non-‘nil’, put the ‘Message-ID’s of articles imported into the
      back end (via ‘Gcc’, for instance) into the mail duplication
      discovery cache.  The default is ‘nil’.
 
 ‘nnmail-cache-ignore-groups’
      This can be a regular expression or a list of regular expressions.
      Group names that match any of the regular expressions will never be
      recorded in the ‘Message-ID’ cache.
 
      Fancy Mail Splitting::) together with the function
      ‘nnmail-split-fancy-with-parent’.
 

Info Catalog gnus: Mail Sources gnus: Getting Mail gnus: Fancy Mail Splitting