Returned msg

Date: Mon, 17 May 2010 15:54:03 -0300
From: Shirley Gilbert <kats5@chebucto.ns.ca>
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To: userhelp@chebucto.ns.ca
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Original-Recipient: rfc822;"| (cd /csuite/info/lists/userhelp; /csuite/lib/arch2html)"

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Hello,
Yes, my msg went thru to you but
I sent one to another address but the
post office returned it to me.
Status: 5.1.1. (bad destination mailbox)
Diagnostic Code: smtp; 550 (Message rejected)
I don't understand their explanation.
SG

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