Hi,
you can create a windows serivce which will send a mail to recipents in the list...
you can set the time for service for a specific interval...
Yes it is possible,
Using windows services you can ahieve that.
Create windows service, it will be called automatically on specified time and execute the code for sending mails.
You can do this task using windows service and doing it using timer in the service..
but the limitation is the system should be up running in order for the service to be running..
Refer this link. Code is also provided. This may help you.
http://www.dnknormark.net/post/Sending-e-mails-from-your-ASPNET-app-and-maintaining-a-list-of-recipients.aspx
and
http://www.dnknormark.net/post/ASPNET-Server-Control-FeedList---List-most-recent-items-from-an-RSS-feed-as-links.aspx
Rakesh Vikram