Deleting Public Mailbox? (Addition)

[Dag Nygren]

> > 
> > This looks like problems with the file system permissions.

Addition to my previous error with the global file being a directory:

Seems like Steffen was right on the spot here anyway:

The directory for the mailbox was indeed owned by
me with all 775 permissions and also the MailingLIsts/mailboxes.

But the top level Mailinglists had for some reason a 555 permission and
"doveadm delete" tried to write a temp file into this for some obscure
reason and failed which failed the delete.

Found it by strace -f doveadm delete

Now fully solved!