As it seems I'm the only one using courier on Fedora, I should probably report my recent problems with it and SELinux. Also, Daniel is so helpful today so I might as well take advantage of that. ;) After an upgrade to F10, mailman is doing something in courier's spool directory: Jan 26 03:46:18 odin kernel: type=1400 audit(1232937978.380:715): avc: denied { read } for pid=13311 comm="mailman" path="/var/spool/courier/msgs/30/D3145730" dev=dm-0 ino=3145732 scontext=system_u:system_r:mailman_mail_t:s0 tcontext=system_u:object_r:courier_spool_t:s0 tclass=file Jan 26 03:46:18 odin kernel: type=1400 audit(1232937978.404:716): avc: denied { ioctl } for pid=13311 comm="python" path="/var/spool/courier/msgs/30/D3145730" dev=dm-0 ino=3145732 scontext=system_u:system_r:mailman_mail_t:s0 tcontext=system_u:object_r:courier_spool_t:s0 tclass=file Jan 26 03:46:18 odin kernel: type=1400 audit(1232937978.411:717): avc: denied { getattr } for pid=13311 comm="python" path="/var/spool/courier/msgs/30/D3145730" dev=dm-0 ino=3145732 scontext=system_u:system_r:mailman_mail_t:s0 tcontext=system_u:object_r:courier_spool_t:s0 tclass=file I don't know enough about mailman to know for sure what it is up to here. Looking at the mail log, it got a message at this time which should mean that /usr/lib/mailman/mail/mailman got executed with /var/spool/courier/msgs/30/D3145730 as stdin. So mailman_mail_t probably needs to be able to read all kinds of mail, which in this case means courier_spool_t.
Miroslav, add courier_read_spool(mailman_mail_t) You will have to generate an interface, We might want to consider changing the label of this directory to mail_spool_t, to prevent this type of errors in the future.
Fixed in selinux-policy-3.5.13-41.fc10
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