Exim4 - Permission Denied

root@dnsnano:~# /usr/sbin/exim4 -d -v -q30m
Exim version 4.80 uid=0 gid=0 pid=1646 D=fbb95cfd
Berkeley DB: Berkeley DB 5.1.29: (October 25, 2011)
Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages DKIM
Lookups (built-in): lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmjz dbmnz dnsdb dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
Compiler: GCC [4.7.2]
Library version: GnuTLS: Compile: 2.12.20
                         Runtime: 2.12.20
Library version: PCRE: Compile: 8.30
                       Runtime: 8.30 2012-02-04
Total 13 lookups
WHITELIST_D_MACROS: "OUTGOING"
TRUSTED_CONFIG_LIST: "/etc/exim4/trusted_configs"
changed uid/gid: forcing real = effective
  uid=0 gid=0 pid=1646
  auxiliary group list: <none>
seeking password data for user "uucp": cache not available
getpwnam() succeeded uid=10 gid=10
changed uid/gid: calling tls_validate_require_cipher
  uid=104 gid=106 pid=1647
  auxiliary group list: <none>
tls_validate_require_cipher child 1647 ended: status=0x0
LOG: MAIN
  Warning: purging the environment.
 Suggested action: use keep_environment.
configuration file is /etc/exim4/exim4.conf
log selectors = ffffffff 7ff7fffd
cwd=/root 4 args: /usr/sbin/exim4 -d -v -q30m
trusted user
admin user
seeking password data for user "mail": cache not available
getpwnam() succeeded uid=8 gid=8
user name "root" extracted from gecos field "root"
originator: uid=0 gid=0 login=root name=root
 1646 changed uid/gid: running as a daemon
 1646   uid=104 gid=106 pid=1646
 1646   auxiliary group list: 106
 1646 LOG: MAIN
 1646   exim 4.80 daemon started: pid=1646, -q30m, not listening for SMTP
 1646 set_process_info:  1646 daemon: -q30m, not listening
 1646 daemon running with uid=104 gid=106 euid=104 egid=106
 1646 SIGALRM received
 1646 1 queue-runner process running
 1648 Starting queue-runner: pid 1648
 1648 exec /usr/sbin/exim4 -q
 1648 LOG: MAIN PANIC DIE
 1648   re-exec of exim (/usr/sbin/exim4) with -q failed: Permission denied
 1648 search_tidyup called
 1648 >>>>>>>>>>>>>>>> Exim pid=1648 terminating with rc=1 >>>>>>>>>>>>>>>>
 1646 child 1648 ended: status=0x100
 1646   normal exit, 1
 1646 0 queue-runner processes now running