AVC denied for write for sendmail_t in dovecot_deliver_tmp_t

Issue

The following AVC denied messages are showing up if Dovecot is configured
to cause a bounce if quota of a mailbox is reached:

AVC denied for write for sendmail_t in dovecot_deliver_tmp_t

type=AVC msg=audit(1326132038.522:35678): avc:  denied  { write } for  pid=16890 comm="sendmail" path=2F746D702F646F7665636F742E6C64612E65356564396337323234383434633265202864656C6574656429 dev=vda1 ino=413575 scontext=unconfined_u:system_r:sendmail_t:s0 tcontext=unconfined_u:object_r:dovecot_deliver_tmp_t:s0 tclass=file
type=SYSCALL msg=audit(1326132038.522:35678): arch=c000003e syscall=59 success=yes exit=0 a0=8fdb08 a1=8fdb20 a2=946130 a3=10 items=0 ppid=16889 pid=16890 auid=0 uid=500 gid=100 euid=500 suid=500 fsuid=500 egid=100 sgid=100 fsgid=100 tty=(none) ses=2428 comm="sendmail" exe="/usr/sbin/sendmail.postfix" subj=unconfined_u:system_r:sendmail_t:s0 key=(null)