[0] 0.104.209.91.in-addr.arpa.: domain name does not exist [1800] 1.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 2.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 3.104.209.91.in-addr.arpa. domain name pointer 91-209-104-3.proofpoint.com [1800] 4.104.209.91.in-addr.arpa. domain name pointer 91-209-104-4.proofpoint.com [1800] 5.104.209.91.in-addr.arpa. domain name pointer 91-209-104-5.proofpoint.com [1800] 6.104.209.91.in-addr.arpa. domain name pointer 91-209-104-6.proofpoint.com [1800] 7.104.209.91.in-addr.arpa. domain name pointer 91-209-104-7.proofpoint.com [1800] 8.104.209.91.in-addr.arpa. domain name pointer 91-209-104-8.proofpoint.com [1800] 9.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 10.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 11.104.209.91.in-addr.arpa. domain name pointer 91-209-104-11.proofpoint.com [1800] 12.104.209.91.in-addr.arpa. domain name pointer 91-209-104-12.proofpoint.com [1800] 13.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 14.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 15.104.209.91.in-addr.arpa. domain name pointer 91-209-104-15.proofpoint.com [1800] 16.104.209.91.in-addr.arpa. domain name pointer 91-209-104-16.proofpoint.com [1800] 17.104.209.91.in-addr.arpa. domain name pointer cr8000.proofpoint.com [1800] 18.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 19.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 20.104.209.91.in-addr.arpa. domain name pointer fw8000.proofpoint.com [1800] 21.104.209.91.in-addr.arpa. domain name pointer fw8001.proofpoint.com [1800] 22.104.209.91.in-addr.arpa. domain name pointer fw8002.proofpoint.com [1800] 23.104.209.91.in-addr.arpa. domain name pointer jh8001.proofpoint.com [1800] 24.104.209.91.in-addr.arpa. domain name pointer 91-209-104-24.proofpoint.com pphadm8003.proofpoint.com [1800] 25.104.209.91.in-addr.arpa. domain name pointer pphadm8004.proofpoint.com 91-209-104-25.proofpoint.com [1800] 26.104.209.91.in-addr.arpa. domain name pointer 91-209-104-26.proofpoint.com [1800] 27.104.209.91.in-addr.arpa. domain name pointer 91-209-104-27.proofpoint.com [1800] 28.104.209.91.in-addr.arpa. domain name pointer 91-209-104-28.proofpoint.com [1800] 29.104.209.91.in-addr.arpa. domain name pointer 91-209-104-29.proofpoint.com [1800] 30.104.209.91.in-addr.arpa. domain name pointer sa-ams.proofpoint.com [1800] 31.104.209.91.in-addr.arpa. domain name pointer 91-209-104-31.proofpoint.com [1800] 32.104.209.91.in-addr.arpa. domain name pointer 91-209-104-32.proofpoint.com [1800] 33.104.209.91.in-addr.arpa. domain name pointer cr8000.proofpoint.com [1800] 34.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 35.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 36.104.209.91.in-addr.arpa. domain name pointer lb8000.proofpoint.com [1800] 37.104.209.91.in-addr.arpa. domain name pointer lb8001.proofpoint.com [1800] 38.104.209.91.in-addr.arpa. domain name pointer lb8002.proofpoint.com [500] 39.104.209.91.in-addr.arpa. domain name pointer ns-ams.proofpoint.us ns-ams.proofpoint.com [1800] 40.104.209.91.in-addr.arpa. domain name pointer prs-ams.proofpoint.com [1800] 41.104.209.91.in-addr.arpa. domain name pointer zerohour4.proofpoint.com [1800] 42.104.209.91.in-addr.arpa. domain name pointer 91-209-104-42.proofpoint.com [1800] 43.104.209.91.in-addr.arpa. domain name pointer 91-209-104-43.proofpoint.com [1800] 44.104.209.91.in-addr.arpa. domain name pointer 91-209-104-44.proofpoint.com [1800] 45.104.209.91.in-addr.arpa. domain name pointer 91-209-104-45.proofpoint.com [0] 46.104.209.91.in-addr.arpa.: domain name does not exist [0] 47.104.209.91.in-addr.arpa.: domain name does not exist [0] 48.104.209.91.in-addr.arpa.: domain name does not exist [0] 49.104.209.91.in-addr.arpa.: domain name does not exist [0] 50.104.209.91.in-addr.arpa.: domain name does not exist [0] 51.104.209.91.in-addr.arpa.: domain name does not exist [0] 52.104.209.91.in-addr.arpa.: domain name does not exist [0] 53.104.209.91.in-addr.arpa.: domain name does not exist [0] 54.104.209.91.in-addr.arpa.: domain name does not exist [0] 55.104.209.91.in-addr.arpa.: domain name does not exist [0] 56.104.209.91.in-addr.arpa.: domain name does not exist [0] 57.104.209.91.in-addr.arpa.: domain name does not exist [0] 58.104.209.91.in-addr.arpa.: domain name does not exist [0] 59.104.209.91.in-addr.arpa.: domain name does not exist [0] 60.104.209.91.in-addr.arpa.: domain name does not exist [0] 61.104.209.91.in-addr.arpa.: domain name does not exist [0] 62.104.209.91.in-addr.arpa.: domain name does not exist [0] 63.104.209.91.in-addr.arpa.: domain name does not exist [0] 64.104.209.91.in-addr.arpa.: domain name does not exist [0] 65.104.209.91.in-addr.arpa.: domain name does not exist [0] 66.104.209.91.in-addr.arpa.: domain name does not exist [0] 67.104.209.91.in-addr.arpa.: domain name does not exist [0] 68.104.209.91.in-addr.arpa.: domain name does not exist [0] 69.104.209.91.in-addr.arpa.: domain name does not exist [0] 70.104.209.91.in-addr.arpa.: domain name does not exist [0] 71.104.209.91.in-addr.arpa.: domain name does not exist [0] 72.104.209.91.in-addr.arpa.: domain name does not exist [1800] 73.104.209.91.in-addr.arpa. domain name pointer fts-02.pphosted.com [0] 74.104.209.91.in-addr.arpa.: domain name does not exist [0] 75.104.209.91.in-addr.arpa.: domain name does not exist [0] 76.104.209.91.in-addr.arpa.: domain name does not exist [1800] 77.104.209.91.in-addr.arpa. domain name pointer eth-0-1-150.fw8001.proofpoint.com [1800] 78.104.209.91.in-addr.arpa. domain name pointer ge-0-0-1-203.cr8001.proofpoint.com [1800] 79.104.209.91.in-addr.arpa. domain name pointer 91-209-104-79.proofpoint.com [1800] 80.104.209.91.in-addr.arpa. domain name pointer 91-209-104-80.proofpoint.com [1800] 81.104.209.91.in-addr.arpa. domain name pointer 91-209-104-81.proofpoint.com [1800] 82.104.209.91.in-addr.arpa. domain name pointer 91-209-104-82.proofpoint.com [1800] 83.104.209.91.in-addr.arpa. domain name pointer 91-209-104-83.proofpoint.com [1800] 84.104.209.91.in-addr.arpa. domain name pointer 91-209-104-84.proofpoint.com [1800] 85.104.209.91.in-addr.arpa. domain name pointer 91-209-104-85.proofpoint.com [1800] 86.104.209.91.in-addr.arpa. domain name pointer 91-209-104-86.proofpoint.com [1800] 87.104.209.91.in-addr.arpa. domain name pointer 91-209-104-87.proofpoint.com [1800] 88.104.209.91.in-addr.arpa. domain name pointer 91-209-104-88.proofpoint.com [1800] 89.104.209.91.in-addr.arpa. domain name pointer 91-209-104-89.proofpoint.com [1800] 90.104.209.91.in-addr.arpa. domain name pointer 91-209-104-90.proofpoint.com [1800] 91.104.209.91.in-addr.arpa. domain name pointer 91-209-104-91.proofpoint.com [1800] 92.104.209.91.in-addr.arpa. domain name pointer 91-209-104-92.proofpoint.com [1800] 93.104.209.91.in-addr.arpa. domain name pointer 91-209-104-93.proofpoint.com [1800] 94.104.209.91.in-addr.arpa. domain name pointer 91-209-104-94.proofpoint.com [1800] 95.104.209.91.in-addr.arpa. domain name pointer 91-209-104-95.proofpoint.com [1800] 96.104.209.91.in-addr.arpa. domain name pointer 91-209-104-96.proofpoint.com [1800] 97.104.209.91.in-addr.arpa. domain name pointer 91-209-104-97.proofpoint.com [1800] 98.104.209.91.in-addr.arpa. domain name pointer 91-209-104-98.proofpoint.com [1800] 99.104.209.91.in-addr.arpa. domain name pointer 91-209-104-99.proofpoint.com [1800] 100.104.209.91.in-addr.arpa. domain name pointer 91-209-104-100.proofpoint.com [1800] 101.104.209.91.in-addr.arpa. domain name pointer 91-209-104-101.proofpoint.com [1800] 102.104.209.91.in-addr.arpa. domain name pointer ui.eu1.proofpointarchiving.net [1800] 103.104.209.91.in-addr.arpa. domain name pointer int.eu1.proofpointarchiving.net [1800] 104.104.209.91.in-addr.arpa. domain name pointer exp.eu1.proofpointarchiving.net [1800] 105.104.209.91.in-addr.arpa. domain name pointer mon.eu1.proofpointarchiving.net [0] 106.104.209.91.in-addr.arpa.: domain name does not exist [0] 107.104.209.91.in-addr.arpa.: domain name does not exist [0] 108.104.209.91.in-addr.arpa.: domain name does not exist [0] 109.104.209.91.in-addr.arpa.: domain name does not exist [0] 110.104.209.91.in-addr.arpa.: domain name does not exist [0] 111.104.209.91.in-addr.arpa.: domain name does not exist [0] 112.104.209.91.in-addr.arpa.: domain name does not exist [0] 113.104.209.91.in-addr.arpa.: domain name does not exist [0] 114.104.209.91.in-addr.arpa.: domain name does not exist [0] 115.104.209.91.in-addr.arpa.: domain name does not exist [600] 116.104.209.91.in-addr.arpa. domain name pointer ui.sc.proofpointarchiving.net [1800] 117.104.209.91.in-addr.arpa. domain name pointer ui.sc.proofpointarchiving.net [600] 118.104.209.91.in-addr.arpa. domain name pointer int.sc.proofpointarchiving.net [1800] 119.104.209.91.in-addr.arpa. domain name pointer int.sc.proofpointarchiving.net [600] 120.104.209.91.in-addr.arpa. domain name pointer exp.sc.proofpointarchiving.net [1800] 121.104.209.91.in-addr.arpa. domain name pointer exp.sc.proofpointarchiving.net [0] 122.104.209.91.in-addr.arpa.: domain name does not exist [0] 123.104.209.91.in-addr.arpa.: domain name does not exist [0] 124.104.209.91.in-addr.arpa.: domain name does not exist [0] 125.104.209.91.in-addr.arpa.: domain name does not exist [0] 126.104.209.91.in-addr.arpa.: domain name does not exist [0] 127.104.209.91.in-addr.arpa.: domain name does not exist [0] 128.104.209.91.in-addr.arpa.: domain name does not exist [0] 129.104.209.91.in-addr.arpa.: domain name does not exist [600] 130.104.209.91.in-addr.arpa. domain name pointer stub.eu1.proofpointarchiving.net [600] 131.104.209.91.in-addr.arpa. domain name pointer stub.sc.proofpointarchiving.net [1800] 132.104.209.91.in-addr.arpa. domain name pointer stub.eu.messagelabsarchiving.com [600] 133.104.209.91.in-addr.arpa. domain name pointer wcs.eu1.proofpointarchiving.net [600] 134.104.209.91.in-addr.arpa. domain name pointer wcs.sc.proofpointarchiving.net [1800] 135.104.209.91.in-addr.arpa. domain name pointer wcs.eu.proofpointarchiving.net [1800] 136.104.209.91.in-addr.arpa. domain name pointer stub.eu1.proofpointarchiving.net [1800] 137.104.209.91.in-addr.arpa. domain name pointer stub.sc.proofpointarchiving.net [1800] 138.104.209.91.in-addr.arpa. domain name pointer stub.eu.messagelabsarchiving.com [1800] 139.104.209.91.in-addr.arpa. domain name pointer wcs.eu1.proofpointarchiving.net [1800] 140.104.209.91.in-addr.arpa. domain name pointer wcs.sc.proofpointarchiving.net [1800] 141.104.209.91.in-addr.arpa. domain name pointer wcs.eu.proofpointarchiving.net [600] 142.104.209.91.in-addr.arpa. domain name pointer api.eu1.proofpointarchiving.net [600] 143.104.209.91.in-addr.arpa. domain name pointer api.sc.proofpointarchiving.net [1800] 144.104.209.91.in-addr.arpa. domain name pointer api.eu.messagelabsarchiving.com [1800] 145.104.209.91.in-addr.arpa. domain name pointer awu.eu1.proofpointarchiving.net [1800] 146.104.209.91.in-addr.arpa. domain name pointer api.eu1.proofpointarchiving.net [1800] 147.104.209.91.in-addr.arpa. domain name pointer api.sc.proofpointarchiving.net [1800] 148.104.209.91.in-addr.arpa. domain name pointer api.eu.messagelabsarchiving.com [600] 149.104.209.91.in-addr.arpa. domain name pointer awu.eu1.proofpointarchiving.net [0] 150.104.209.91.in-addr.arpa.: domain name does not exist [0] 151.104.209.91.in-addr.arpa.: domain name does not exist [0] 152.104.209.91.in-addr.arpa.: domain name does not exist [0] 153.104.209.91.in-addr.arpa.: domain name does not exist [0] 154.104.209.91.in-addr.arpa.: domain name does not exist [1800] 155.104.209.91.in-addr.arpa. domain name pointer mx1-eu1.ppe-hosted.com [1800] 156.104.209.91.in-addr.arpa. domain name pointer mx2-eu1.ppe-hosted.com [1800] 157.104.209.91.in-addr.arpa. domain name pointer dispatch1-eu1.ppe-hosted.com [1800] 158.104.209.91.in-addr.arpa. domain name pointer dispatchb-eu1.ppe-hosted.com [1800] 159.104.209.91.in-addr.arpa. domain name pointer eu1.proofpointessentials.com [1800] 160.104.209.91.in-addr.arpa. domain name pointer storage-eu.ppe-hosted.com [1800] 161.104.209.91.in-addr.arpa. domain name pointer 91-209-104-161.proofpoint.com [1800] 162.104.209.91.in-addr.arpa. domain name pointer 91-209-104-162.proofpoint.com [1800] 163.104.209.91.in-addr.arpa. domain name pointer 91-209-104-163.proofpoint.com [1800] 164.104.209.91.in-addr.arpa. domain name pointer 91-209-104-164.proofpoint.com [1800] 165.104.209.91.in-addr.arpa. domain name pointer 91-209-104-165.proofpoint.com [1800] 166.104.209.91.in-addr.arpa. domain name pointer 91-209-104-166.proofpoint.com [1800] 167.104.209.91.in-addr.arpa. domain name pointer 91-209-104-167.proofpoint.com [1800] 168.104.209.91.in-addr.arpa. domain name pointer 91-209-104-168.proofpoint.com [1800] 169.104.209.91.in-addr.arpa. domain name pointer 91-209-104-169.proofpoint.com [1800] 170.104.209.91.in-addr.arpa. domain name pointer 91-209-104-170.proofpoint.com [1800] 171.104.209.91.in-addr.arpa. domain name pointer 91-209-104-171.proofpoint.com [1800] 172.104.209.91.in-addr.arpa. domain name pointer 91-209-104-172.proofpoint.com [1800] 173.104.209.91.in-addr.arpa. domain name pointer 91-209-104-173.proofpoint.com [1800] 174.104.209.91.in-addr.arpa. domain name pointer 91-209-104-174.proofpoint.com [1800] 175.104.209.91.in-addr.arpa. domain name pointer 91-209-104-175.proofpoint.com [1800] 176.104.209.91.in-addr.arpa. domain name pointer 91-209-104-176.proofpoint.com [1800] 177.104.209.91.in-addr.arpa. domain name pointer 91-209-104-177.proofpoint.com [1800] 178.104.209.91.in-addr.arpa. domain name pointer 91-209-104-178.proofpoint.com [1800] 179.104.209.91.in-addr.arpa. domain name pointer 91-209-104-179.proofpoint.com [1800] 180.104.209.91.in-addr.arpa. domain name pointer 91-209-104-180.proofpoint.com [1800] 181.104.209.91.in-addr.arpa. domain name pointer 91-209-104-181.proofpoint.com [1800] 182.104.209.91.in-addr.arpa. domain name pointer 91-209-104-182.proofpoint.com [1800] 183.104.209.91.in-addr.arpa. domain name pointer 91-209-104-183.proofpoint.com [1800] 184.104.209.91.in-addr.arpa. domain name pointer 91-209-104-184.proofpoint.com [1800] 185.104.209.91.in-addr.arpa. domain name pointer 91-209-104-185.proofpoint.com [1800] 186.104.209.91.in-addr.arpa. domain name pointer 91-209-104-186.proofpoint.com [1800] 187.104.209.91.in-addr.arpa. domain name pointer 91-209-104-187.proofpoint.com [1800] 188.104.209.91.in-addr.arpa. domain name pointer 91-209-104-188.proofpoint.com [1800] 189.104.209.91.in-addr.arpa. domain name pointer 91-209-104-189.proofpoint.com [1800] 190.104.209.91.in-addr.arpa. domain name pointer 91-209-104-190.proofpoint.com [1800] 191.104.209.91.in-addr.arpa. domain name pointer 91-209-104-191.proofpoint.com [1800] 192.104.209.91.in-addr.arpa. domain name pointer 91-209-104-192.proofpoint.com [1800] 193.104.209.91.in-addr.arpa. domain name pointer 91-209-104-193.proofpoint.com [1800] 194.104.209.91.in-addr.arpa. domain name pointer 91-209-104-194.proofpoint.com [1800] 195.104.209.91.in-addr.arpa. domain name pointer 91-209-104-195.proofpoint.com [1800] 196.104.209.91.in-addr.arpa. domain name pointer 91-209-104-196.proofpoint.com [1800] 197.104.209.91.in-addr.arpa. domain name pointer 91-209-104-197.proofpoint.com [1800] 198.104.209.91.in-addr.arpa. domain name pointer 91-209-104-198.proofpoint.com [1800] 199.104.209.91.in-addr.arpa. domain name pointer 91-209-104-199.proofpoint.com [1800] 200.104.209.91.in-addr.arpa. domain name pointer 91-209-104-200.proofpoint.com [1800] 201.104.209.91.in-addr.arpa. domain name pointer 91-209-104-201.proofpoint.com [1800] 202.104.209.91.in-addr.arpa. domain name pointer 91-209-104-202.proofpoint.com [1800] 203.104.209.91.in-addr.arpa. domain name pointer 91-209-104-203.proofpoint.com [1800] 204.104.209.91.in-addr.arpa. domain name pointer 91-209-104-204.proofpoint.com [1800] 205.104.209.91.in-addr.arpa. domain name pointer 91-209-104-205.proofpoint.com [1800] 206.104.209.91.in-addr.arpa. domain name pointer 91-209-104-206.proofpoint.com [1800] 207.104.209.91.in-addr.arpa. domain name pointer 91-209-104-207.proofpoint.com [1800] 208.104.209.91.in-addr.arpa. domain name pointer 91-209-104-208.proofpoint.com [1800] 209.104.209.91.in-addr.arpa. domain name pointer 91-209-104-209.proofpoint.com [1800] 210.104.209.91.in-addr.arpa. domain name pointer 91-209-104-210.proofpoint.com [1800] 211.104.209.91.in-addr.arpa. domain name pointer 91-209-104-211.proofpoint.com [1800] 212.104.209.91.in-addr.arpa. domain name pointer cr8001.proofpoint.com [1800] 213.104.209.91.in-addr.arpa. domain name pointer cr8002.proofpoint.com [1800] 214.104.209.91.in-addr.arpa. domain name pointer cr8000.proofpoint.com [1800] 215.104.209.91.in-addr.arpa. domain name pointer 91-209-104-215.proofpoint.com [1800] 216.104.209.91.in-addr.arpa. domain name pointer 91-209-104-216.proofpoint.com [1800] 217.104.209.91.in-addr.arpa. domain name pointer 91-209-104-217.proofpoint.com [1800] 218.104.209.91.in-addr.arpa. domain name pointer 91-209-104-218.proofpoint.com [1800] 219.104.209.91.in-addr.arpa. domain name pointer 91-209-104-219.proofpoint.com [1800] 220.104.209.91.in-addr.arpa. domain name pointer 91-209-104-220.proofpoint.com [1800] 221.104.209.91.in-addr.arpa. domain name pointer 91-209-104-221.proofpoint.com [1800] 222.104.209.91.in-addr.arpa. domain name pointer 91-209-104-222.proofpoint.com [1800] 223.104.209.91.in-addr.arpa. domain name pointer 91-209-104-223.proofpoint.com [1800] 224.104.209.91.in-addr.arpa. domain name pointer 91-209-104-224.proofpoint.com [1800] 225.104.209.91.in-addr.arpa. domain name pointer 91-209-104-225.proofpoint.com [1800] 226.104.209.91.in-addr.arpa. domain name pointer 91-209-104-226.proofpoint.com [1800] 227.104.209.91.in-addr.arpa. domain name pointer 91-209-104-227.proofpoint.com [1800] 228.104.209.91.in-addr.arpa. domain name pointer 91-209-104-228.proofpoint.com [1800] 229.104.209.91.in-addr.arpa. domain name pointer 91-209-104-229.proofpoint.com [1800] 230.104.209.91.in-addr.arpa. domain name pointer 91-209-104-230.proofpoint.com [1800] 231.104.209.91.in-addr.arpa. domain name pointer 91-209-104-231.proofpoint.com [1800] 232.104.209.91.in-addr.arpa. domain name pointer 91-209-104-232.proofpoint.com [1800] 233.104.209.91.in-addr.arpa. domain name pointer 91-209-104-233.proofpoint.com [1800] 234.104.209.91.in-addr.arpa. domain name pointer 91-209-104-234.proofpoint.com [1800] 235.104.209.91.in-addr.arpa. domain name pointer 91-209-104-235.proofpoint.com [1800] 236.104.209.91.in-addr.arpa. domain name pointer 91-209-104-236.proofpoint.com [1800] 237.104.209.91.in-addr.arpa. domain name pointer 91-209-104-237.proofpoint.com [1800] 238.104.209.91.in-addr.arpa. domain name pointer 91-209-104-238.proofpoint.com [1800] 239.104.209.91.in-addr.arpa. domain name pointer 91-209-104-239.proofpoint.com [1800] 240.104.209.91.in-addr.arpa. domain name pointer 91-209-104-240.proofpoint.com [1800] 241.104.209.91.in-addr.arpa. domain name pointer 91-209-104-241.proofpoint.com [1800] 242.104.209.91.in-addr.arpa. domain name pointer 91-209-104-242.proofpoint.com [1800] 243.104.209.91.in-addr.arpa. domain name pointer 91-209-104-243.proofpoint.com [1800] 244.104.209.91.in-addr.arpa. domain name pointer 91-209-104-244.proofpoint.com [1800] 245.104.209.91.in-addr.arpa. domain name pointer 91-209-104-245.proofpoint.com [1800] 246.104.209.91.in-addr.arpa. domain name pointer 91-209-104-246.proofpoint.com [1800] 247.104.209.91.in-addr.arpa. domain name pointer 91-209-104-247.proofpoint.com [1800] 248.104.209.91.in-addr.arpa. domain name pointer 91-209-104-248.proofpoint.com [1800] 249.104.209.91.in-addr.arpa. domain name pointer 91-209-104-249.proofpoint.com [1800] 250.104.209.91.in-addr.arpa. domain name pointer 91-209-104-250.proofpoint.com [1800] 251.104.209.91.in-addr.arpa. domain name pointer 91-209-104-251.proofpoint.com [1800] 252.104.209.91.in-addr.arpa. domain name pointer 91-209-104-252.proofpoint.com [1800] 253.104.209.91.in-addr.arpa. domain name pointer 91-209-104-253.proofpoint.com [1800] 254.104.209.91.in-addr.arpa. domain name pointer 91-209-104-254.proofpoint.com [1800] 255.104.209.91.in-addr.arpa. domain name pointer 91-209-104-255.proofpoint.com