I instituted a subscriber-only posting policy on the zope@zope.org list at the end of last week (friday afternoon), and haven't encountered any problems with it. In the process we learned that gmail postings are *not* inhibited (to the contrary, gmail postings circumvent the policy, for which we'll have to compensate), and that the policy generally works quite well. The rejection message on these lists includes hints about why the message got rejected and how to enable posting from alternate addresses, so legitimate posters should have recourse if they need it. However, let me know if you get stuck with problems. On tuesday i started to apply the policy to all the applicable lists i manage, and recommend it for all zope.org lists. Death to spam. Ken Manheimer klm@zope.com Comment on SpamBayes (a python-based spam filter) Slashdot site: I hate spam just as much as the next person, but I must admit, without it I wouldn't be the horse-sized love stud that I am. Thanks spam. -- dprice