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ERROR 250. Recieved 550 5.7.1 Unable to relay

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2005-02-02
2013-04-15
  • I got this error when usind smtp.send(). what it mean?

     
    • the error says as:

      ERROR 250. Recieved 550 5.7.1 Unable to relay xxxx@xxxxxx.xxx

      i tried to change the address and i got the same error

       
      • The mail server you are using as the relay, is not allowing you to relay though it.