[0] 0.133.55.157.in-addr.arpa.: domain name does not exist
[3600] 1.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 2.133.55.157.in-addr.arpa. domain name pointer po32-728.bl2-6nb-1a.ntwk.msn.net
[3600] 3.133.55.157.in-addr.arpa. domain name pointer po32-728.bl2-6nb-1b.ntwk.msn.net
[3600] 4.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 5.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 6.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 7.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 8.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 9.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 10.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 11.133.55.157.in-addr.arpa. domain name pointer ns4a.o365filtering.com naffo01-bl2-blk.mail.protection.outlook.com
[3600] 12.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 13.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 14.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 15.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 16.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 17.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 18.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 19.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 20.133.55.157.in-addr.arpa. domain name pointer naffo01-bl2-blk.mail.protection.outlook.com
[3600] 21.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 22.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 23.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 24.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 25.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 26.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 27.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 28.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 29.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 30.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 31.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 32.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 33.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 34.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 35.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 36.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 37.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 38.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 39.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 40.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 41.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 42.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 43.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 44.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 45.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 46.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 47.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 48.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 49.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 50.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 51.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 52.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 53.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 54.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 55.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 56.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 57.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 58.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 59.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 60.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 61.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 62.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[0] 63.133.55.157.in-addr.arpa.: domain name does not exist
[3600] 64.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 65.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 66.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 67.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 68.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 69.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 70.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 71.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 72.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 73.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 74.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 75.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 76.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 77.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 78.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 79.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 80.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 81.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 82.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 83.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 84.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 85.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 86.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 87.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 88.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 89.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 90.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 91.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 92.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 93.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[3600] 94.133.55.157.in-addr.arpa. domain name pointer na01-bl2-blk.ptr.protection.outlook.com
[0] 95.133.55.157.in-addr.arpa.: domain name does not exist
[3600] 96.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 97.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 98.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 99.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 100.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 101.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 102.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 103.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 104.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 105.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 106.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 107.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 108.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 109.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 110.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 111.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 112.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 113.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 114.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 115.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 116.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 117.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 118.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 119.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 120.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 121.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 122.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 123.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 124.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 125.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[3600] 126.133.55.157.in-addr.arpa. domain name pointer na01-bl2-ndr.ptr.protection.outlook.com
[0] 127.133.55.157.in-addr.arpa.: domain name does not exist
[0] 128.133.55.157.in-addr.arpa.: domain name does not exist
[0] 129.133.55.157.in-addr.arpa.: domain name does not exist
[0] 130.133.55.157.in-addr.arpa.: domain name does not exist
[0] 131.133.55.157.in-addr.arpa.: domain name does not exist
[0] 132.133.55.157.in-addr.arpa.: domain name does not exist
[0] 133.133.55.157.in-addr.arpa.: domain name does not exist
[0] 134.133.55.157.in-addr.arpa.: domain name does not exist
[0] 135.133.55.157.in-addr.arpa.: domain name does not exist
[0] 136.133.55.157.in-addr.arpa.: domain name does not exist
[0] 137.133.55.157.in-addr.arpa.: domain name does not exist
[0] 138.133.55.157.in-addr.arpa.: domain name does not exist
[0] 139.133.55.157.in-addr.arpa.: domain name does not exist
[0] 140.133.55.157.in-addr.arpa.: domain name does not exist
[0] 141.133.55.157.in-addr.arpa.: domain name does not exist
[0] 142.133.55.157.in-addr.arpa.: domain name does not exist
[0] 143.133.55.157.in-addr.arpa.: domain name does not exist
[0] 144.133.55.157.in-addr.arpa.: domain name does not exist
[0] 145.133.55.157.in-addr.arpa.: domain name does not exist
[0] 146.133.55.157.in-addr.arpa.: domain name does not exist
[0] 147.133.55.157.in-addr.arpa.: domain name does not exist
[0] 148.133.55.157.in-addr.arpa.: domain name does not exist
[0] 149.133.55.157.in-addr.arpa.: domain name does not exist
[0] 150.133.55.157.in-addr.arpa.: domain name does not exist
[0] 151.133.55.157.in-addr.arpa.: domain name does not exist
[0] 152.133.55.157.in-addr.arpa.: domain name does not exist
[0] 153.133.55.157.in-addr.arpa.: domain name does not exist
[0] 154.133.55.157.in-addr.arpa.: domain name does not exist
[0] 155.133.55.157.in-addr.arpa.: domain name does not exist
[0] 156.133.55.157.in-addr.arpa.: domain name does not exist
[0] 157.133.55.157.in-addr.arpa.: domain name does not exist
[0] 158.133.55.157.in-addr.arpa.: domain name does not exist
[0] 159.133.55.157.in-addr.arpa.: domain name does not exist
[0] 160.133.55.157.in-addr.arpa.: domain name does not exist
[0] 161.133.55.157.in-addr.arpa.: domain name does not exist
[0] 162.133.55.157.in-addr.arpa.: domain name does not exist
[3600] 163.133.55.157.in-addr.arpa. domain name pointer va3outboundsmtppool1.messaging.microsoft.com
[3600] 164.133.55.157.in-addr.arpa. domain name pointer va3outboundsmtppool2.messaging.microsoft.com
[0] 165.133.55.157.in-addr.arpa.: domain name does not exist
[0] 166.133.55.157.in-addr.arpa.: domain name does not exist
[0] 167.133.55.157.in-addr.arpa.: domain name does not exist
[0] 168.133.55.157.in-addr.arpa.: domain name does not exist
[0] 169.133.55.157.in-addr.arpa.: domain name does not exist
[0] 170.133.55.157.in-addr.arpa.: domain name does not exist
[0] 171.133.55.157.in-addr.arpa.: domain name does not exist
[0] 172.133.55.157.in-addr.arpa.: domain name does not exist
[0] 173.133.55.157.in-addr.arpa.: domain name does not exist
[0] 174.133.55.157.in-addr.arpa.: domain name does not exist
[0] 175.133.55.157.in-addr.arpa.: domain name does not exist
[0] 176.133.55.157.in-addr.arpa.: domain name does not exist
[0] 177.133.55.157.in-addr.arpa.: domain name does not exist
[0] 178.133.55.157.in-addr.arpa.: domain name does not exist
[0] 179.133.55.157.in-addr.arpa.: domain name does not exist
[0] 180.133.55.157.in-addr.arpa.: domain name does not exist
[0] 181.133.55.157.in-addr.arpa.: domain name does not exist
[0] 182.133.55.157.in-addr.arpa.: domain name does not exist
[0] 183.133.55.157.in-addr.arpa.: domain name does not exist
[0] 184.133.55.157.in-addr.arpa.: domain name does not exist
[0] 185.133.55.157.in-addr.arpa.: domain name does not exist
[0] 186.133.55.157.in-addr.arpa.: domain name does not exist
[0] 187.133.55.157.in-addr.arpa.: domain name does not exist
[0] 188.133.55.157.in-addr.arpa.: domain name does not exist
[0] 189.133.55.157.in-addr.arpa.: domain name does not exist
[0] 190.133.55.157.in-addr.arpa.: domain name does not exist
[0] 191.133.55.157.in-addr.arpa.: domain name does not exist
[0] 192.133.55.157.in-addr.arpa.: domain name does not exist
[0] 193.133.55.157.in-addr.arpa.: domain name does not exist
[0] 194.133.55.157.in-addr.arpa.: domain name does not exist
[0] 195.133.55.157.in-addr.arpa.: domain name does not exist
[0] 196.133.55.157.in-addr.arpa.: domain name does not exist
[0] 197.133.55.157.in-addr.arpa.: domain name does not exist
[0] 198.133.55.157.in-addr.arpa.: domain name does not exist
[0] 199.133.55.157.in-addr.arpa.: domain name does not exist
[0] 200.133.55.157.in-addr.arpa.: domain name does not exist
[0] 201.133.55.157.in-addr.arpa.: domain name does not exist
[0] 202.133.55.157.in-addr.arpa.: domain name does not exist
[0] 203.133.55.157.in-addr.arpa.: domain name does not exist
[0] 204.133.55.157.in-addr.arpa.: domain name does not exist
[0] 205.133.55.157.in-addr.arpa.: domain name does not exist
[0] 206.133.55.157.in-addr.arpa.: domain name does not exist
[0] 207.133.55.157.in-addr.arpa.: domain name does not exist
[0] 208.133.55.157.in-addr.arpa.: domain name does not exist
[0] 209.133.55.157.in-addr.arpa.: domain name does not exist
[0] 210.133.55.157.in-addr.arpa.: domain name does not exist
[0] 211.133.55.157.in-addr.arpa.: domain name does not exist
[0] 212.133.55.157.in-addr.arpa.: domain name does not exist
[0] 213.133.55.157.in-addr.arpa.: domain name does not exist
[0] 214.133.55.157.in-addr.arpa.: domain name does not exist
[0] 215.133.55.157.in-addr.arpa.: domain name does not exist
[0] 216.133.55.157.in-addr.arpa.: domain name does not exist
[0] 217.133.55.157.in-addr.arpa.: domain name does not exist
[0] 218.133.55.157.in-addr.arpa.: domain name does not exist
[0] 219.133.55.157.in-addr.arpa.: domain name does not exist
[0] 220.133.55.157.in-addr.arpa.: domain name does not exist
[0] 221.133.55.157.in-addr.arpa.: domain name does not exist
[0] 222.133.55.157.in-addr.arpa.: domain name does not exist
[0] 223.133.55.157.in-addr.arpa.: domain name does not exist
[0] 224.133.55.157.in-addr.arpa.: domain name does not exist
[0] 225.133.55.157.in-addr.arpa.: domain name does not exist
[0] 226.133.55.157.in-addr.arpa.: domain name does not exist
[0] 227.133.55.157.in-addr.arpa.: domain name does not exist
[0] 228.133.55.157.in-addr.arpa.: domain name does not exist
[0] 229.133.55.157.in-addr.arpa.: domain name does not exist
[0] 230.133.55.157.in-addr.arpa.: domain name does not exist
[0] 231.133.55.157.in-addr.arpa.: domain name does not exist
[0] 232.133.55.157.in-addr.arpa.: domain name does not exist
[0] 233.133.55.157.in-addr.arpa.: domain name does not exist
[0] 234.133.55.157.in-addr.arpa.: domain name does not exist
[0] 235.133.55.157.in-addr.arpa.: domain name does not exist
[0] 236.133.55.157.in-addr.arpa.: domain name does not exist
[0] 237.133.55.157.in-addr.arpa.: domain name does not exist
[0] 238.133.55.157.in-addr.arpa.: domain name does not exist
[0] 239.133.55.157.in-addr.arpa.: domain name does not exist
[0] 240.133.55.157.in-addr.arpa.: domain name does not exist
[0] 241.133.55.157.in-addr.arpa.: domain name does not exist
[0] 242.133.55.157.in-addr.arpa.: domain name does not exist
[0] 243.133.55.157.in-addr.arpa.: domain name does not exist
[0] 244.133.55.157.in-addr.arpa.: domain name does not exist
[0] 245.133.55.157.in-addr.arpa.: domain name does not exist
[0] 246.133.55.157.in-addr.arpa.: domain name does not exist
[0] 247.133.55.157.in-addr.arpa.: domain name does not exist
[0] 248.133.55.157.in-addr.arpa.: domain name does not exist
[0] 249.133.55.157.in-addr.arpa.: domain name does not exist
[0] 250.133.55.157.in-addr.arpa.: domain name does not exist
[0] 251.133.55.157.in-addr.arpa.: domain name does not exist
[0] 252.133.55.157.in-addr.arpa.: domain name does not exist
[0] 253.133.55.157.in-addr.arpa.: domain name does not exist
[0] 254.133.55.157.in-addr.arpa.: domain name does not exist
[0] 255.133.55.157.in-addr.arpa.: domain name does not exist