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Comcast SMTP server is blacklisted

76.96.107.72 (omta02.potomac.co.businessclass.comcast.net.) the recommended SMTP server for business customers are blacklisted by NiX Spam run by a German ISP. 

 

Could someone from Comcast support please visit their Web site and fill in the form requesting for unblock.
http://www.dnsbl.manitu.net/

 

 

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