[Mailman-Users] Can email notification of approval be done?

[Paul Key]

Hi

When a user posts to a moderated list and the list admin rejects their 
post they get an email to tell them their post has been rejected.

What I want to do is when a poster to a moderated list is approved - 
they are sent an email by mailman telling them about the approval AND it 
would be nice if a third party could be cc'd this email at the same time.

Can approval notification by email be done by mailman (in the same way 
it is done automatically for rejections)?

Thanks

Paul