outqueue - data authority

hi,

i got a little problem understanding the keyword AUTCHK of an outqueue.

my understanding is that if i put *DTAAUT in AUTCHK then the user with the 
*R(ead) data authority can read any spool from any user in that specific 
outqueue.

i checked the data authority on the outqueue with:

DSPAUT OBJ('/QSYS.LIB/QGPL.LIB/TESTOUTQ.OUTQ')

and got:

<snip>
TESTMK      *RX
</snip>

so the user TESTMK has the data authority read and execute. should be enough 
for reading a spool file, or not?

but the user can't read a spool file that is not his own in that outqueue. can 
anybody explain this to me?

thanx in advance.

mihael knezevic