[Mailman-Users] Nth post moderation?

[Adam Boettiger]

I see from the FAQ that it is possible to set all list 
member settings to moderated. I also see that it is possible 
to set the privacy settings such that future new subscribers 
have the moderated flag. What I don't see is if it is 
possible to do what I want, which is to set the settings 
such that for all new subscribers the first five posts or N 
posts are moderated, after which the moderated flag is removed.

Is this possible to do?