Re: Save mail in multiple mbox files

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>> What I would like is
>>   * gnus reads from imap
>>   * I can store an article (mail message) in a file (mbox format)
>>     with an arbitrary name
>
> This can certainly be done with nnmbox as a secondary selection method
> by setting up mail-sources suitably.

But this may not be practical.
If one has 200 files, each with mail from different people, projects
would one have to set up 200 mail sources ?

>> Some observations..  I am having a hard time persuading the nnmbox
>> backend not to use ~/mbox.
>
> I don't know, but I guess that changing this would require modifying
> the code for nnmbox.

It seems as if ~/mbox is fixed in
   nnoo-state-alist
   nnoo-state-definition-alist
which are not customisable variables.

>> I would be content if I could
>>   * read from imap with gnus
>>   * save articles to a holding place (preferably mbox format)
>
>       With nnmbox use the key C-o from the summary buffer, which
>       invokes gnus-summary-save-article-mail (and appends to mbox),
>       rather than the key o, which invokes gnus-summary-save-article
>       (and appends to presumed babyl)

Yes, but then one has to go back to the mail item and
  B <delete>
Whereas gnus already has the idea of moving (not copying) with
  B m

>>   * use rmail to move them to final places later
>
>     I don't understand what you mean, but I'm dubious about using
>     rmail at all if you're using gnus.

There are two good reasons.
1. In the future, one may want to change mail reader. Unix mbox is a
rather common format and likely to be eaten by other programs.
2. From years of using rmail or vm, there are already 100's of such
files.