Re: Why are incoming mails saved twice?

[Tassilo Horn]

Hermann <meinelisten@onlinehome.de> writes:

Hi Hermann!

> I use nnml as mail backend, and I figured out that arriving mails are
> stored twice:
> In ~/Mail/mail/misc with numbers and in
> ~/Mail as Incoming*.

The bleeding edge versions of gnus keep backup files of all mails.
Those are the Incoming* files.

> When I clean up my inbox, those Incoming* mails still exist.  Is there
> a way to get rid of them without destroying the structure of mail
> handling?

See

,----[ (info "(gnus)Mail Source Customization") ]
| `mail-source-delete-incoming'
|      If non-`nil', delete incoming files after handling them.  If `t',
|      delete the files immediately, if `nil', never delete any files.
|      If a positive number, delete files older than number of days (the
|      deletion will only happen when receiving new mail).  You may also
|      set `mail-source-delete-incoming' to `nil' and call
|      `mail-source-delete-old-incoming' from a hook or interactively.
|      `mail-source-delete-incoming' defaults to `10' in alpha Gnusae and
|      `2' in released Gnusae.  *Note Gnus Development::.
`----

and

,----[ (info "(gnus)Gnus Development") ]
|    Some variable defaults differ between alpha Gnusae and released
| Gnusae, in particular, `mail-source-delete-incoming'.  This is to
| prevent lossage of mail if an alpha release hiccups while handling the
| mail.  *Note Mail Source Customization::.
`----

> Simply deleting all this mails is perhaps no good idea?

No problem, you can delete them without worrying.

Bye,
Tassilo