[Bug 297768] New: Filter loses mails, when moving messages from Mbox /var/spool/mail/$USER to INBOX

[comet.friend at gmx.net]

https://bugs.kde.org/show_bug.cgi?id=297768

            Bug ID: 297768
          Severity: critical
           Version: 4.8
          Priority: NOR
          Assignee: kdepim-bugs at kde.org
           Summary: Filter loses mails, when moving messages from Mbox
                    /var/spool/mail/$USER to INBOX
    Classification: Unclassified
                OS: Linux
          Reporter: comet.friend at gmx.net
          Hardware: Slackware Packages
            Status: UNCONFIRMED
         Component: filtering
           Product: kmail2

Because KMail2 cannot spool messages from /var/spool/mail/$USER to inbox, I
created an Mbox account/folder for that file and thought I could get the
messages from there to inbox with a filter. However, mails are moved away from
the file, but never arrive at the target destination, when I apply that filter.

I can use filters like that in combination with IMAP and POP3 accounts. While
it is not applied automatically for incoming mail, like it should, it works,
when I apply it manually. Just when I want to use such a filter for
/var/spool/mail/$USER, mails are lost.



Steps to reproduce:

1. Create an account/folder containing your INBOX. Could be POP3 or maildir.

2. Create an Mbox account (and identity) for local mail, i. e.
/var/spool/mail/$USER.

3. Create a filter, that moves all messages targeted at local addresses to
INBOX (maildir).

4. Send yourself a local mail, from another user account on the same machine.
Create a new user account, if you don't have one. Use mailx or Alpine to
compose and send the message as the other user to your own account.

5. In the main window of KMail2, click on the Mbox folder symbol. You should
see the new message. If so, you know, that automatic filtering of incoming
messages is not working, BTW. Therefore, apply the filter now manually.

6. The message is deleted from the Mbox. But where is it? Not in the target
folder (INBOX)! :((

So, KMail2 cannot handle local mail like every other Linux mail client I know
of, and because filtering is not working, there's not even a workaround. What
is more, the combination of bugs and deficiencies is critical, as losing mail
is not acceptable. That's why I'd consider fixing this as very urgent.

Best regards,

   Alex

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