From owner-freebsd-questions  Thu Sep 20 18:28:22 2001
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Date: Thu, 20 Sep 2001 18:28:20 -0700 (PDT)
From: ann kok <annkok2001@yahoo.com>
Subject: mail box lock
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Dear all

I heard that symbol '@' in the email header can lock
the receiver's mail box

Is it right? 

Why does it happen?

and Why?

Many thanks

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