You posted an interesting response message, leading me to believe that there may be issues with the MX records of the domain you are trying to send the message to.
71.39.102.153 maps to
NO PROVIDER
192.119.220.186 maps to
Mediacom Communications Corporation
100 Crystal Run Road
NY
66.103.180.42 maps to
Hutchinson Telephone Company
235 Franklin St SW
MN
192.119.255.198 maps to
Mediacom Communications Corporation
100 Crystal Run Road
NY
because of the disperate locations, and IP address allocation, this looks like someone attempted to setup redundancy on their MX server(s) and none of them are responding, therefore, no delivery to any of the four location.
If you can post the DOMAIN NAME of the e-mail recipient, we can check further and see if we can find any additional information for you, but, right now, what you have provided is of little help.
Bruce Barnes
ChicagoNetTech Inc
brucecnt@comcast.net
Phonr: (773) 491-9019
Phone: (224) 444-0169
E-Mail and DNS Security Specialist
Network Security Specialist
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Website: https://www.ChicagoNetTech.com
Security Blog: http://networkbastion.blogspot.com/
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