Thanks, it's really the SELinux problem. The labels of some files in `/var/spool/postfix/pid` have the wrong label set. Running `/sbin/restorecon -rv /var/spool/postfix/pid/*` fixed the problem. So my problem is now solved.
But I have no idea why the labels are changed themselves, though. Will it be possible that after I've enabled virtual mailboxes I re-started postfix manually, so the files are created with the wrong label? I see that if I start postfix manually, the process isn't running in the expected SELinux context. Will this possibly be a bug? Thanks, Alvin Wong 2012/6/4 Wietse Venema <[email protected]>: > Alvin Wong: >> Hi, >> >> First thank you for trying to help, but it seems that you missed a >> part: if I execute `postfix stop; postfix start` manually in the >> terminal, the problem is >> "solved" until the next reboot. >> > Check your SELINUX, APPARMOR etc. "security" configuration. > > Wietse
