Cron not working

With a fresh install, no change to system or files.
Cron commands set in the user interface are not working.
Cron sh type not working as admin user.
Tried all the possibilities still no answer.

The error that is been printed in log is (CRON) EXEC FAILED
The same commands work when executed in shell window.
Any hints?
Any ideas?
I've tried really all the possibilities...

Same problm for me:

Code: [Select]

Jan  9 16:00:01 host CROND[17932]: (CRON) EXEC FAILED (/usr/sbin/sendmail): Resource temporarily unavailable
Jan  9 16:00:01 host CROND[17914]: (user) MAIL (mailed 71 bytes of output but got status 0x0001#012)

I have the same cron job as user root inserted and it is running. Seems like some user related limits but nothing i has tested worked.