PING us4.api.mailchimp.com (184.173.96.194) 56(84) bytes of data. 64 bytes from 184.173.96.194-static.reverse.softlayer.com (184.173.96.194): icmp_seq=1 ttl=46 time=165 ms 64 bytes from 184.173.96.194-static.reverse.softlayer.com (184.173.96.194): icmp_seq=2 ttl=46 time=165 ms 64 bytes from 184.173.96.194-static.reverse.softlayer.com (184.173.96.194): icmp_seq=3 ttl=46 time=165 ms 64 bytes from 184.173.96.194-static.reverse.softlayer.com (184.173.96.194): icmp_seq=4 ttl=46 time=165 msBut connecting to port 80 or 443 is not possible from this machine, but I *can* connect to us1 and us2.