The following IP addresses were running an open relay that did not log the senders' IP address, back in march 2000. Some of them are still running the same open relays.

129.252.3.129 129.63.8.31 130.237.205.54 138.87.163.119 158.250.2.80 162.96.174.163 168.29.240.13 193.225.17.1 194.109.60.215 194.109.83.147 194.84.40.246 194.85.153.67 194.91.11.1 195.100.215.2 195.153.132.158 195.199.31.189 195.20.240.21 195.249.181.243 195.249.181.245 195.27.250.67 195.39.130.242 195.61.105.113 200.28.31.24 202.101.236.114 202.106.189.32 202.121.80.10 202.216.105.55 202.247.58.130 202.254.212.1 202.96.172.168 203.10.48.18 203.66.215.30 204.60.67.242 205.219.6.8 206.235.90.67 209.181.150.157 209.75.230.117 210.151.184.33 210.162.162.51 210.163.116.66 210.172.81.2 210.196.121.178 210.226.90.82 210.230.240.26 210.74.125.1 212.208.183.68 216.65.148.98 62.144.89.24 62.157.224.153