FIM Distribution List Expiration time

Hi,

 I am working on FIM 2010 and new to this technology. I have a below requirement.

We need to send an Email alerts to inform owner of the Distribution List (DL) every 3 months, to “approve” or “delete” DL;

If owner fails to choose, system to send email reminder every week, after 3 additional alerts 

Email alerts to inform owner of DL expiration 1 week prior to deletion

It could be great help if anyone helps me on this. Awaiting for your quick response.

Thanks,

Raveendra Raju

ravindraraju