On Mon, 17 Aug 2009 13:02:34 +0200, oka...@gmail.com wrote:

> For example we have all-t...@test.com and we want to only allow
> one-u...@test.com to send an email to all-t...@test.com, others can't
> send to this email address.

http://www.postfwd.org/ and http://www.policyd.org/ can both do this

-- 
Benny Pedersen

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