vi sa-exim.conf 
sa-learn --spam /var/mail/sharewiz.net/spam/cur/
sa-learn --ham /var/mail/sharewiz.net/ham/cur/
 
date -r `sa-learn --dump magic | grep "oldest atime" | cut -f 3 -w`
 
sa-learn --dump magic 
sa-learn --dump magic | grep "oldest atime"
sa-learn --dump magic | grep "oldest atime" | cut -f 3 -w