I found this script very usefull to maintain Trash and Spam folder on users' Maildir
mostly for those who is actively using webmail.
http://wiki.qmailtoaster.com/index.php/Maintain_Trash_and_Spam_folder
but then other folders like Drafts and Sent are not maintained, so I modified the script a little bit,
so it will maintain Drafts, Sent, Trash and Spam folders in one shot!!!
[ more.. ]