WordPress MU

i want to email all my users based based on a date in my database. if they haven't updated in 30 days, send an email, "we miss you, etc.."

is there already a plugin for this? if not, can this be done? if so, how should this be "kicked off"?

any ideas or comments appreciated.

any ideas?

thats a very nice idea.

perhaps,
a modification of the "Automatically Delete Inactive Blogs" script could do this without deleting.

http://mu.wordpress.org/forums/topic.php?id=1659