[Mailman-Users] Managing junk subscription requests?

I'm getting ready to move a large (800+ member) unmoderated list that's existed on L-soft to a mailman list. Never had to deal with "junk" subscriptions before with this list. Any suggestions on how to not have to deal with them in Mailman? Below is a message from this morning from another list I've managed.... -h

-------- Original Message -------- Subject: 13 xxxxx moderator request(s) waiting Date: Sat, 06 Apr 2013 08:00:01 -0500 From: xxxxx-bounces@xxxx.org To: xxxxx-owner@xxxx.org

The xxxxx@xxxx.org mailing list has 13 request(s) waiting for your consideration at:

http://xxxx.org/cgi-bin/mailman/admindb/xxxxx

Please attend to this at your earliest convenience. This notice of pending requests, if any, will be sent out daily.

Pending subscriptions:

 vznend@rvkmvs.com (zkcpikpv) Wed Apr  3 13:55:05 2013
 jmbzdp@mkpqwt.com (lyiawz) Wed Apr  3 16:00:36 2013
 eumwov@hxxyhq.com (hlgaqwmmlw) Wed Apr  3 23:13:08 2013
 qzlhzb@nbwhyi.com (zwgnbwmpte) Thu Apr  4 01:39:23 2013
 emhody@olqryu.com (ksgwimsimjt) Thu Apr  4 06:06:54 2013
 hxpqyw@gykoiw.com (esntidwcc) Thu Apr  4 07:38:42 2013
 xtrhgo@vuwigf.com (amooqp) Thu Apr  4 08:48:31 2013
 nlojeo@hswzqx.com (xwddyqyfvs) Thu Apr  4 10:32:42 2013
 kxvbsk@ymjbaf.com (dczzstty) Thu Apr  4 16:39:15 2013
 pfrazw@zdgdiz.com (uknobk) Thu Apr  4 17:15:55 2013
 gcnrsr@oszhmu.com (fotyvcmlyt) Thu Apr  4 22:38:54 2013
 slucxa@xhbqzn.com (fqxvsvyou) Thu Apr  4 23:33:19 2013