[Smec2019] Undelivered Mail Returned to Sender

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<yangding at aps.anl.gov>: host herald.aps.anl.gov[164.54.22.161] said: 550 5.1.1
    <yangding at aps.anl.gov>: Recipient address rejected: User unknown in local
    recipient table (in reply to RCPT TO command)
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From: smec2019 <smec2019 at roma1.infn.it>
Subject: SMEC2019 Miami - online registration
Date: Wed, 02 Jan 2019 09:47:47 +0100
Size: 3813
Url: http://lists2.roma1.infn.it/pipermail/smec2019/attachments/20190102/b938895f/attachment.mht