saving output of test to a text file

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Hi,

I'm trying to run sudo -u postfix spamassassin -D -p 
/etc/MailScanner/spam.assassin.prefs.conf -t < MESSAGE.MAI
and I would like the full output to be saved to a text file when I do:
sudo -u postfix spamassassin -p 
/etc/MailScanner/spam.assassin.prefs.conf -t < MESSAGE.MAI > text.txt
it only puts the last part (i.e. the message and scores) into the text file.
I really need to see all the debug output as I am trying to see which 
user is running when trying to access FuzzyOCR.

Thanks
Kate