I had the same problem on my system 10.04 After modifying the permissions on the /var/run/courier/authdaemon directory the error disappeared
chmod 755 /var/run/courier/authdaemon/ --- the error --- Oct 27 15:02:24 servername postfix/pipe[10665]: B30227076F: to=<a...@email.address>, relay=maildrop, delay=0.17, delays=0.08/0.01/0/0.07, dsn=5.1.1, status=bounced (user unknown. Command output: ERR: authdaemon: s_connect() failed: Permission denied Invalid user specified. ) -- ERR: authdaemon: s_connect() failed: No such file or directory https://bugs.launchpad.net/bugs/102947 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
