Thanks for your help Ian,
I'd run "sh -x /etc/cron.daily/spamassassin" to see what command in that file failed. I assume it is the sa-compile command.
Running /etc/cron.daily/spamassassin manually, either with "-x" provided to the shell or simply by running it, letting the shebang do the job, doesn't yield any error. It seems the environment might not exactly be the same when running through the cron job, but I can't put my finger on it.
Bernard
