gmail rejected my email

gmail rejected my email


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redstar.logistics1@gmail.com, ERROR_CODE :550, ERROR_CODE :5.7.1 [135.84.80.216 12] Our system has detected that this message is 
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Message-ID:<1690b5528fa.bfc1b60b21005.1953443694149824903@redstar-logistics.net
Date:Wed, 20 Feb 2019 16:35:24 +0200 
From:Rafat Khalil <rafat@redstar-logistics.net
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Subject:Rate request 1X20'DV AQJ/NYC/CHI CY 
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