Hi Nigel!
I change "nobody" to "spamd" user and after try again this error appears:
accept: condition test failed
processing "warn"
check add_header = X-Spam-Score: $spam_score ($spam_bar)\n
= X-Spam-Score: 1.4 (+)
warn: condition test succeeded
processing "drop"
check condition = ${if >{$spam_score_int}{60} {1}}
=
drop: condition test failed
end of ACL "acl_check_data": implicit DENY
>>Headers added by DATA ACL:
X-Spam-Score: 1.4 (+)
>>
unspool_mbox(): unlinking
'/var/spool/exim/scan/1NDESu-0004b3-OP/1NDESu-0004b3-OP.eml'
550 Administrative prohibition
LOG: MAIN REJECT
H=localhost (mylocaldomain) [127.0.0.1] F=<sender@somedomain>
rejected after DATA