Christian Ro??ner: > Aug 20 15:02:34 mx postfix/submission/cleanup[28091]: warning: > mail_queue_enter: create file incoming/648259.28091: Required > key not available
Can you check if the cleanup daemon runs chrooted?
$ postconf -F cleanup/unix/chroot
If the output says 'yes' then you may want to try:
# postconf -F cleanup/unix/chroot=no
# postfix reload
(ditto for other Postfix daemons).
Wietse
