[exim] Block file list from mysql table

Is it possible to get the list of blocked attachments(blacklisted file extension like .exe, .scr) from mysql table.
Now, I have the list in system filter file but I want to pull from mysql dbase dynamically. I want to add/edit/delete the list using php pages like I do now for the virtual users data.
I am using exim 4.42 without exiscan.
any help will be appreciated.
raj gautam