Undelivered Mail Returned to Sender

Thu Mar 16 17:06:42 UTC 2017

This is the mail system at host chekov.siemens.com.br.

I'm sorry to have to inform you that your message could not
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For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
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                   The mail system

<adr31000000149748pr4 at siemens.com.br>: host
    fw-mta.siemens.com.br[129.214.16.91] said: 554 5.4.0 Error: too many hops
    (in reply to end of DATA command)
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