I have createt a symlink between /opt/zimbra/conf/spamassassin and /etc/mail/spamassassin, but I have another problem.
new output zmtrainsa:
$ zmtrainsa
[] INFO: Total messages processed: 8
[] INFO: Total messages processed: 0
Learned from 0 message(s) (8 message(s) examined).
archive-iterator: readdir found no mail in '/tmp/ham.14714' directory
Learned from 0 message(s) (0 message(s) examined).
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
command: '/opt/zimbra/dspam-3.6.2/bin/dspam' --class=spam --source=corpus --user 'zimbra' --mode=teft --feature=chained,noise
/opt/zimbra/dspam/bin/dspam_corpus: 1 messages, 00:00:01 elapsed, 1.00 msgs./sec.
/bin/rm: cannot get current directory: Permission denied
rm: remove.c:378: AD_pop_and_chdir: Assertion `AD_stack_height (ds)' failed.
/opt/zimbra/bin/zmtrainsa: line 27: 14767 Aborted /bin/rm -rf ${spamdir} ${hamdir}  |