What mechanism makes Administrator get postmaster@domain ?

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From: SuperGumby [SBS MVP] (not_at_your.nellie)
Date: 03/06/04 

Date: Sun, 7 Mar 2004 09:49:44 +1100

I want to make another user postmaster. Actually, I want to make a
distribution group postmaster with me as the only member.

WHY? Multiple domains. By having the postmaster DG the default recipient
policy will give postmaster pm@dom1, pm@dom2, pm@dom3, etc...