SELinux is preventing /usr/bin/procmail from 'read' accesses on the fifo_file fifo_file.

*****  Plugin catchall (50.5 confidence) suggests  ***************************

If you believe that procmail should be allowed read access on the fifo_file fifo_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep procmail /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

*****  Plugin leaks (50.5 confidence) suggests  ******************************

If you want to ignore procmail trying to read access the fifo_file fifo_file, because you believe it should not need this access.
Then you should report this as a bug.  
You can generate a local policy module to dontaudit this access.
Do
# grep /usr/bin/procmail /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:procmail_t:s0
Target Context                system_u:system_r:postfix_master_t:s0
Target Objects                fifo_file [ fifo_file ]
Source                        procmail
Source Path                   /usr/bin/procmail
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           procmail-3.22-25.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-37.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.35.12-88.fc14.i686 #1 SMP Thu Mar 31 22:12:38
                              UTC 2011 i686 i686
Alert Count                   1
First Seen                    Tue 12 Apr 2011 04:33:44 PM EDT
Last Seen                     Tue 12 Apr 2011 04:33:44 PM EDT
Local ID                      bc1c39e4-66ac-446e-b009-7c93b66cf996

Raw Audit Messages
type=AVC msg=audit(1302640424.467:39711): avc:  denied  { read } for  pid=2319 comm="procmail" path="pipe:[14673]" dev=pipefs ino=14673 scontext=system_u:system_r:procmail_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=fifo_file


type=AVC msg=audit(1302640424.467:39711): avc:  denied  { write } for  pid=2319 comm="procmail" path="pipe:[14673]" dev=pipefs ino=14673 scontext=system_u:system_r:procmail_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=fifo_file


type=SYSCALL msg=audit(1302640424.467:39711): arch=i386 syscall=execve success=yes exit=0 a0=9d272e8 a1=9d271b0 a2=9d26640 a3=9d271b0 items=0 ppid=2271 pid=2319 auid=4294967295 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=4294967295 comm=procmail exe=/usr/bin/procmail subj=system_u:system_r:procmail_t:s0 key=(null)

Hash: procmail,procmail_t,postfix_master_t,fifo_file,read

audit2allow

#============= procmail_t ==============
allow procmail_t postfix_master_t:fifo_file { read write };

audit2allow -R

#============= procmail_t ==============
allow procmail_t postfix_master_t:fifo_file { read write };