I already have some ispconfig servers running Debian. Now I want to transfer my local imap mailserver to a virtual machine with ispconfig but this doesn't look so easy. The imap mailserver is a Mandriva Powerpack + 2007 installation with Postfix and mbox. - When I want to transfer all mailboxes to Maildir, somehow this didn't work out. Adding folders etc. was a complete mess. - I was able to copy all mailboxes to a Mandriva system (perfect setup). But as soon as some user tried to receive a mail there's this error: ... delay=1.3, delays=1/0.01/0/0.25, dsn=5.2.0, status=bounced (can't create user output file. Command output: /bin/sh: line 2: -oi: command not found procmail: Error while writing to "/var/spool/mail/vs11_user1" ) or this: ... can't create user output file. Command output: /bin/sh: line 2: -oi: command not found When I remove the mailbox again, a new file is created and that user can receive his mail again. Just for testing purpose I tried this: # cd /var/spool/mail/ # cat vs11_user1_orig > vs11_user1 Guess what, there's the error again.