Odd behavior from p4-0-0.MAR1.Austin-TX.us.xo.net

The loop seems to be in AS 2828 (XO Communications) with router at 64.1.2.38.

Looking at this now.

Justin Ryburn
Tier II Router Support
XO Communications

This should be corrected now. I still cannot ping the host in question but
I am guessing that spamhaus has ICMP filters on their stuff. It is
definitely routing to the correct place now. Our customer service
department is following up with the customer (spamhaus' provider) to make
sure they are seeing everything correctly.

Justin Ryburn
Tier II Router Support
XO Communications

Thanks to all who helped resolve this issue. Our mail people confirm that
they are able to successfully sync with spamhaus

                            Scott C. McGrath