Description of problem:
Dovecot and Postfix using LMTP to deliver emails gives AVC denials:

type=AVC msg=audit(1314483455.100:17918): avc:  denied  { search } for
pid=6665
comm="lmtp" name="dovecot" dev=vda1 ino=1051484
scontext=system_u:system_r:postfix_smtp_t:s0 tcontext=system
_u:object_r:dovecot_var_run_t:s0 tclass=dir
type=AVC msg=audit(1313879594.357:17253): avc:  denied  { search } for  pid=16163 comm="lmtp" name="dovecot" dev=vda1 ino=1051484 scontext=unconfined_u:system_r:postfix_smtp_t:s0 tcontext=system_u:object_r:dovecot_var_run_t:s0 tclass=dir
type=AVC msg=audit(1313879594.357:17253): avc:  denied  { write } for  pid=16163 comm="lmtp" name="lmtp" dev=vda1 ino=1044671 scontext=unconfined_u:system_r:postfix_smtp_t:s0 tcontext=unconfined_u:object_r:dovecot_var_run_t:s0 tclass=sock_file
type=AVC msg=audit(1313879594.357:17253): avc:  denied  { connectto } for  pid=16163 comm="lmtp" path="/var/run/dovecot/lmtp" scontext=unconfined_u:system_r:postfix_smtp_t:s0 tcontext=unconfined_u:system_r:dovecot_t:s0 tclass=unix_stream_socket
type=SYSCALL msg=audit(1313879594.357:17253): arch=c000003e syscall=42 success=yes exit=0 a0=e a1=7fff30c63870 a2=6e a3=7fff30c63510 items=0 ppid=16100 pid=16163 auid=0 uid=89 gid=89 euid=89 suid=89 fsuid=89 egid=89 sgid=89 fsgid=89 tty=(none) ses=25 comm="lmtp" exe="/usr/libexec/postfix/lmtp" subj=unconfined_u:system_r:postfix_smtp_t:s0 key=(null)


Version-Release number of selected component (if applicable):
selinux-policy-3.9.7-44.fc14.noarch
selinux-policy-targeted-3.9.7-44.fc14.noarch

How reproducible:
Always

Steps to Reproduce:
1. Postfix configuration:

mailbox_transport = lmtp:unix:/var/run/dovecot/lmtp

2. Dovecot configuration:
service lmtp {
  unix_listener lmtp {
     mode = 0660
     group = postfix
     user = postfix
  }

3. Receive an email
  
Actual results:
selinux denials

Expected results:
No selinux denials

Additional info:
Message from Dominick Grift on selinux list to solve it:

mkdir ~/mypostfix; cd ~/mypostfix;
echo "policy_module(mypostfix, 1.0.0) optional_policy(\` gen_require(\`
type postfix_smtp_t; ') dovecot_stream_connect(postfix_smtp_t)')" >
mypostfix.te;

make -f /usr/share/selinux/devel/Makefile mypostfix.pp
sudo semodule -i mypostfix.pp