SMTP PROTOCAL LOG FOR VITUAL SERVER

Hi there,
           i asked this question yersterday,now below messages are coming from everywhere and i i can check event viewer where it is showing every second ,  on small business server 2003 exchange. how can i stop them and also how can stop them coming...

           We are running SBS 2003 and running exchange server too. I check event viewer and in application , i found too many red errror sign with following message.
     
This is an SMTP protocal log for virtual server id 1. connection #46.The client at "125.213.4.118" send a "rcpt" command. and the SMTP server respoded with '550.5.7.1 unable to relay for yyw995555566@yahoo.com.tw " the full command sent was "rcpt To <yyw9955555566@yahoo.com.tw>" . This will probably cause the connection to fail"

I dont know what does it mean, can someone help me in this regards please

Source is MS EXCHANGE TRANSPORT


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Ezlog
ezlogAsked:
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ezlogAuthor Commented:
can someone advice me, how can i stop this email coming to exchnge server as it looks like, it is stopping our client valid email or increasing queue for messages delivery... We are using small business server 2003 with exchange.

Someone to help here

ezlog
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