i have configured fetchmail+procmail+spamassassin for 70 users in centos5 box in my office it is working well all the spam mails are stored in spam folder in user home dir in maildir format like (/home/users/mail/.spam/cur|new|tmp ) folder. it is increasing disk space. so i want a single script to delete spam mails periodically. is this possible

If you already know shell you could try converting pseudo code like:

"find /home/directory and type directory and maximum depth is 1 and while read userhome; do
find userhome and type directory and caseinsensitive name [regex matches spam] and while read foldername; do
remove folder; create folder and chmod && chown it to the userid. (done; done)"

or

"find /home/directory and type directory and maximum depth is 1 and while read userhome; do
find userhome and type directory and caseinsensitive name [regex matches spam] and while read foldername; do
find foldername and type file and while read file; xargs remove file. (done; done)"

else post whatever you tried to script and we could comment on that.