Description of problem:
SELinux is preventing smtpd from read, write access on the file /var/spool/postfix/pid/inet.submission.

*****  Plugin catchall (100. confidence) suggests  ***************************

If cree que de manera predeterminada, smtpd debería permitir acceso read write sobre  inet.submission file.     
Then debería reportar esto como un error.
Puede generar un módulo de política local para permitir este acceso.
Do
permita el acceso momentáneamente executando:
# grep smtpd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:postfix_smtpd_t:s0
Target Context                system_u:object_r:postfix_var_run_t:s0
Target Objects                /var/spool/postfix/pid/inet.submission [ file ]
Source                        smtpd
Source Path                   smtpd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           postfix-2.9.6-4.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-95.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.9.2-200.fc18.x86_64 #1 SMP Mon
                              May 13 13:59:47 UTC 2013 x86_64 x86_64
Alert Count                   2
First Seen                    2013-05-19 15:30:10 CEST
Last Seen                     2013-05-19 15:30:56 CEST
Local ID                      06b47d63-3277-4480-8af9-3729288c9064

Raw Audit Messages
type=AVC msg=audit(1368970256.224:776): avc:  denied  { read write } for  pid=9712 comm="smtpd" name="inet.submission" dev="dm-2" ino=6162153 scontext=system_u:system_r:postfix_smtpd_t:s0 tcontext=system_u:object_r:postfix_var_run_t:s0 tclass=file


type=SYSCALL msg=audit(1368970256.224:776): arch=x86_64 syscall=open success=no exit=EACCES a0=7f437e65af50 a1=2 a2=0 a3=11 items=0 ppid=9705 pid=9712 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=smtpd exe=/usr/libexec/postfix/smtpd subj=system_u:system_r:postfix_smtpd_t:s0 key=(null)

Hash: smtpd,postfix_smtpd_t,postfix_var_run_t,file,read,write

audit2allow

#============= postfix_smtpd_t ==============
allow postfix_smtpd_t postfix_var_run_t:file { read write };

audit2allow -R
require {
	type postfix_smtpd_t;
	type postfix_var_run_t;
	class file { read write };
}

#============= postfix_smtpd_t ==============
allow postfix_smtpd_t postfix_var_run_t:file { read write };


Additional info:
hashmarkername: setroubleshoot
kernel:         3.9.2-200.fc18.x86_64
type:           libreport

Potential duplicate: bug 960075