underlords.com - robtex.com

underlords.com

DNSSEC⚠️ Not signed
A104.94.122.13πŸ‡ΊπŸ‡Έ Akamai104.94.112.0/20 Technologies
PTRa104-94-122-13.deploy.static.akamaitechnologies.com
NSns1.valvesoftware.com ⭐
A208.64.203.134πŸ‡ΊπŸ‡Έ VALVE-1208.64.203.0/24 auto-generated route object for 208.64.203.0/24
PTRns1.valvesoftware.com
NSa1-194.akam.net
A2600:1401:2::c2πŸ‡ΊπŸ‡Έ Akamai2600:1401:2::/48 Technologies
PTRa1-194.akam.net
PTRns1-194.akam.net
A193.108.91.194πŸ‡³πŸ‡± Akamai193.108.91.0/24 Technologies
PTRa1-194.akam.net
PTRns1-194.akam.net
NSa2-64.akam.net
A2600:1480:7000::40πŸ‡ΊπŸ‡Έ Akamai2600:1480:7000::/48 Technologies
PTRa2-64.akam.net
A95.100.174.64πŸ‡³πŸ‡± Akamai95.100.174.0/24 Technologies
PTRa2-64.akam.net
PTReur3.akam.net
NSa22-67.akam.net
A2600:1480:7800::43πŸ‡ΊπŸ‡Έ Akamai2600:1480:7800::/48 Technologies
PTRa22-67.akam.net
A23.211.61.67πŸ‡ΊπŸ‡Έ Akamai23.211.61.0/24 Technologies
PTRa22-67.akam.net
NSa24-64.akam.net
A2600:1480:9800::40πŸ‡ΊπŸ‡Έ Akamai2600:1480:9800::/48 Technologies
PTRa24-64.akam.net
A2.16.130.64πŸ‡³πŸ‡± Akamai2.16.130.0/24 Technologies
PTRa24-64.akam.net
NSa7-66.akam.net
A2600:1406:32::42πŸ‡ΊπŸ‡Έ Akamai2600:1406:32::/48 Technologies
PTRa7-66.akam.net
PTRns3-66.akam.net
A23.61.199.66πŸ‡ΊπŸ‡Έ Akamai23.61.199.0/24 Technologies
PTRa7-66.akam.net
PTRns3-66.akam.net
NSa9-66.akam.net
A2a02:26f0:117::42πŸ‡³πŸ‡± Akamai2a02:26f0:117::/48 Technologies
PTRa9-66.akam.net
PTRns5-66.akam.net
A184.85.248.66πŸ‡ΊπŸ‡Έ Akamai184.85.248.0/24 Technologies
PTRa9-66.akam.net
PTRns5-66.akam.net
MXus-smtp-inbound-1.mimecast.com ⭐
A170.10.128.141πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.221πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.242πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.141πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.221πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.242πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
MXus-smtp-inbound-2.mimecast.com ⭐
A170.10.128.141πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.221πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.242πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.141πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.221πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.242πŸ‡ΊπŸ‡Έ Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
TXTv=spf1 mx include:_netblocks.mimecast.com -all
TXT4vq1wtk9bf4mth9751w4yvn0nyszh55y
SOAns1.valvesoftware.comadmin@valvesoftware.com 2025-07-07 #44

com

rank #662169 globally
rank #298204 in the tld
πŸ“ˆ Tranco rank: #858,313

Subdomains

Same first word

DNS History

32 records (10 active, 22 former)

2008201020122014201620182020202220242026NSa1-194.akam.neta2-64.akam.neta22-67.akam.neta24-64.akam.neta7-66.akam.neta9-66.akam.netns1.valvesoftware.combuy.internettraffic.comns1.ipowerweb.netns1.uniregistrymarket.linkns2.ipowerweb.netns2.uniregistrymarket.linksell.internettraffic.comMXus-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.commx.underlords.comA104.94.122.13104.101.153.239104.126.125.147104.76.172.254104.81.169.48184.24.161.37184.31.66.9184.85.230.1192.23.141.14523.201.165.15323.213.69.7423.40.174.9723.73.196.1766.235.195.15969.172.201.15369.172.201.208
●NSa1-194.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●NSa2-64.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●NSa22-67.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●NSa24-64.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●NSa7-66.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●NSa9-66.akam.net2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
β—‹NSbuy.internettraffic.com2015-07-19 β†’ 2016-06-28 Β· 5 obs
β—‹ 2007-10-24 11:00:54
● 2015-07-19 01:56:28
● 2016-06-28 14:20:46
β—‹ 2017-04-11 03:54:08
β—‹ 2026-03-15 12:28:00
β—‹NSns1.ipowerweb.net2007-10-24 β†’ 2007-10-24 Β· 3 obs
● 2007-10-24 11:00:54
β—‹ 2015-07-19 01:56:28
β—‹ 2026-03-15 12:28:00
β—‹NSns1.uniregistrymarket.link2017-04-11 β†’ 2017-04-11 Β· 4 obs
β—‹ 2016-06-28 14:20:46
● 2017-04-11 03:54:08
β—‹ 2019-08-09 17:18:04
β—‹ 2026-03-15 12:28:00
●NSns1.valvesoftware.com2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
β—‹NSns2.ipowerweb.net2007-10-24 β†’ 2007-10-24 Β· 3 obs
● 2007-10-24 11:00:54
β—‹ 2015-07-19 01:56:28
β—‹ 2026-03-15 12:28:00
β—‹NSns2.uniregistrymarket.link2017-04-11 β†’ 2017-04-11 Β· 4 obs
β—‹ 2016-06-28 14:20:46
● 2017-04-11 03:54:08
β—‹ 2019-08-09 17:18:04
β—‹ 2026-03-15 12:28:00
β—‹NSsell.internettraffic.com2015-07-19 β†’ 2016-06-28 Β· 5 obs
β—‹ 2007-10-24 11:00:54
● 2015-07-19 01:56:28
● 2016-06-28 14:20:46
β—‹ 2017-04-11 03:54:08
β—‹ 2026-03-15 12:28:00
β—‹MXmx.underlords.com2007-10-24 β†’ 2007-10-24 Β· 3 obs
● 2007-10-24 11:00:54
β—‹ 2015-07-19 01:56:28
β—‹ 2026-03-15 12:28:00
●MXus-smtp-inbound-1.mimecast.com2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2015-07-19 01:56:28
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
●MXus-smtp-inbound-2.mimecast.com2019-08-09 β†’ 2026-03-15 Β· 3 obs
β—‹ 2015-07-19 01:56:28
● 2019-08-09 17:18:04
● 2026-03-15 12:28:00
β—‹A104.101.153.2392021-09-10 β†’ 2021-09-10 Β· 4 obs
β—‹ 2019-09-20 11:48:28
● 2021-09-10 06:48:06
β—‹ 2026-02-17 18:01:04
β—‹ 2026-03-15 12:28:00
β—‹A104.126.125.1472026-03-12 β†’ 2026-03-12 Β· 4 obs
β—‹ 2026-03-12 04:53:26
● 2026-03-12 10:05:16
β—‹ 2026-03-12 11:01:24
β—‹ 2026-03-15 12:28:00
β—‹A104.76.172.2542019-08-09 β†’ 2019-08-09 Β· 4 obs
β—‹ 2017-04-11 03:54:08
● 2019-08-09 17:18:04
β—‹ 2019-09-20 11:48:28
β—‹ 2026-03-15 12:28:00
β—‹A104.81.169.482026-03-05 β†’ 2026-03-05 Β· 4 obs
β—‹ 2026-03-05 07:49:46
● 2026-03-05 12:34:04
β—‹ 2026-03-05 20:35:24
β—‹ 2026-03-15 12:28:00
●A104.94.122.132026-02-21 β†’ 2026-03-15 Β· 20 obs
β—‹ 2026-02-17 18:01:04
β—‹ 2026-02-20 20:42:34
● 2026-02-21 13:48:46
β—‹ 2026-02-21 16:01:50
β—‹ 2026-02-23 22:57:00
● 2026-02-23 23:47:30
β—‹ 2026-02-24 00:21:08
β—‹ 2026-03-10 09:31:50
● 2026-03-10 10:31:06
β—‹ 2026-03-10 13:24:06
β—‹ 2026-03-11 09:37:52
● 2026-03-11 13:48:02
β—‹ 2026-03-11 18:54:16
β—‹ 2026-03-15 03:13:04
● 2026-03-15 03:46:50
● 2026-03-15 06:16:48
β—‹ 2026-03-15 08:38:02
β—‹ 2026-03-15 10:41:48
● 2026-03-15 12:27:58
● 2026-03-15 12:28:00
β—‹A184.24.161.372026-02-17 β†’ 2026-03-15 Β· 74 obs
β—‹ 2021-09-10 06:48:06
● 2026-02-17 18:01:04
β—‹ 2026-02-19 06:26:00
● 2026-02-19 14:29:20
● 2026-02-19 22:45:30
β—‹ 2026-02-20 10:35:42
● 2026-02-20 20:42:34
β—‹ 2026-02-21 13:48:46
β—‹ 2026-02-21 16:01:50
● 2026-02-21 17:11:20
● 2026-02-22 17:12:40
β—‹ 2026-02-22 18:34:34
● 2026-02-23 06:33:58
● 2026-02-23 10:16:42
β—‹ 2026-02-23 22:57:00
β—‹ 2026-02-24 00:21:08
● 2026-02-24 01:05:10
● 2026-02-26 09:42:36
β—‹ 2026-02-27 14:29:58
● 2026-02-28 12:22:14
● 2026-02-28 13:48:18
β—‹ 2026-02-28 18:06:12
● 2026-03-01 00:55:22
β—‹ 2026-03-01 12:38:54
● 2026-03-01 15:02:42
● 2026-03-01 16:30:12
β—‹ 2026-03-01 22:01:04
● 2026-03-02 13:08:54
β—‹ 2026-03-02 18:22:02
● 2026-03-03 02:30:02
● 2026-03-04 01:55:26
β—‹ 2026-03-04 05:54:58
β—‹ 2026-03-04 07:37:08
● 2026-03-04 08:12:46
● 2026-03-05 07:49:46
β—‹ 2026-03-05 12:34:04
● 2026-03-05 20:35:24
● 2026-03-06 03:45:18
β—‹ 2026-03-06 16:05:58
● 2026-03-06 18:14:30
β—‹ 2026-03-07 02:18:34
● 2026-03-07 04:05:08
● 2026-03-07 17:57:00
β—‹ 2026-03-07 22:15:44
β—‹ 2026-03-08 00:28:44
● 2026-03-08 06:18:34
● 2026-03-09 02:51:02
β—‹ 2026-03-09 05:45:26
● 2026-03-09 12:45:02
● 2026-03-10 09:31:50
β—‹ 2026-03-10 10:31:06
● 2026-03-10 13:24:06
● 2026-03-11 09:37:52
β—‹ 2026-03-11 13:48:02
● 2026-03-11 18:54:16
● 2026-03-12 04:53:26
β—‹ 2026-03-12 10:05:16
● 2026-03-12 11:01:24
● 2026-03-12 11:41:20
β—‹ 2026-03-12 18:07:38
β—‹ 2026-03-12 19:33:40
● 2026-03-13 02:34:02
● 2026-03-13 17:12:10
β—‹ 2026-03-13 18:32:14
● 2026-03-14 03:54:20
● 2026-03-14 07:37:06
β—‹ 2026-03-14 11:14:46
● 2026-03-14 13:46:24
● 2026-03-15 03:13:04
β—‹ 2026-03-15 03:46:50
β—‹ 2026-03-15 08:38:02
● 2026-03-15 10:41:48
β—‹ 2026-03-15 12:27:58
β—‹ 2026-03-15 12:28:00
β—‹A184.31.66.92026-02-20 β†’ 2026-03-08 Β· 28 obs
β—‹ 2026-02-19 22:45:30
● 2026-02-20 10:35:42
β—‹ 2026-02-20 20:42:34
β—‹ 2026-02-21 13:48:46
● 2026-02-21 16:01:50
β—‹ 2026-02-21 17:11:20
β—‹ 2026-02-22 17:12:40
● 2026-02-22 18:34:34
β—‹ 2026-02-23 06:33:58
β—‹ 2026-02-23 10:16:42
● 2026-02-23 22:57:00
β—‹ 2026-02-23 23:47:30
● 2026-02-24 00:21:08
β—‹ 2026-02-24 01:05:10
β—‹ 2026-02-26 09:42:36
● 2026-02-27 14:29:58
β—‹ 2026-02-28 12:22:14
β—‹ 2026-02-28 13:48:18
● 2026-02-28 18:06:12
β—‹ 2026-03-01 00:55:22
β—‹ 2026-03-01 16:30:12
● 2026-03-01 22:01:04
β—‹ 2026-03-02 13:08:54
β—‹ 2026-03-07 17:57:00
● 2026-03-07 22:15:44
● 2026-03-08 00:28:44
β—‹ 2026-03-08 06:18:34
β—‹ 2026-03-15 12:28:00
β—‹A184.85.230.1192026-03-01 β†’ 2026-03-15 Β· 10 obs
β—‹ 2026-03-01 00:55:22
● 2026-03-01 12:38:54
β—‹ 2026-03-01 15:02:42
β—‹ 2026-03-13 17:12:10
● 2026-03-13 18:32:14
β—‹ 2026-03-14 03:54:20
β—‹ 2026-03-15 06:16:48
● 2026-03-15 08:38:02
β—‹ 2026-03-15 10:41:48
β—‹ 2026-03-15 12:28:00
β—‹A2.23.141.1452026-03-04 β†’ 2026-03-09 Β· 7 obs
β—‹ 2026-03-04 05:54:58
● 2026-03-04 07:37:08
β—‹ 2026-03-04 08:12:46
β—‹ 2026-03-09 02:51:02
● 2026-03-09 05:45:26
β—‹ 2026-03-09 12:45:02
β—‹ 2026-03-15 12:28:00
β—‹A23.201.165.1532026-02-19 β†’ 2026-02-19 Β· 4 obs
β—‹ 2026-02-17 18:01:04
● 2026-02-19 06:26:00
β—‹ 2026-02-19 14:29:20
β—‹ 2026-03-15 12:28:00
β—‹A23.213.69.742026-03-04 β†’ 2026-03-14 Β· 14 obs
β—‹ 2026-03-04 01:55:26
● 2026-03-04 05:54:58
β—‹ 2026-03-04 07:37:08
β—‹ 2026-03-06 03:45:18
● 2026-03-06 16:05:58
β—‹ 2026-03-06 18:14:30
β—‹ 2026-03-12 11:41:20
● 2026-03-12 18:07:38
● 2026-03-12 19:33:40
β—‹ 2026-03-13 02:34:02
β—‹ 2026-03-14 07:37:06
● 2026-03-14 11:14:46
β—‹ 2026-03-14 13:46:24
β—‹ 2026-03-15 12:28:00
β—‹A23.40.174.972026-03-02 β†’ 2026-03-07 Β· 7 obs
β—‹ 2026-03-02 13:08:54
● 2026-03-02 18:22:02
β—‹ 2026-03-03 02:30:02
β—‹ 2026-03-06 18:14:30
● 2026-03-07 02:18:34
β—‹ 2026-03-07 04:05:08
β—‹ 2026-03-15 12:28:00
β—‹A23.73.196.172019-09-20 β†’ 2019-09-20 Β· 4 obs
β—‹ 2019-08-09 17:18:04
● 2019-09-20 11:48:28
β—‹ 2021-09-10 06:48:06
β—‹ 2026-03-15 12:28:00
β—‹A66.235.195.1592007-10-24 β†’ 2007-10-24 Β· 3 obs
● 2007-10-24 11:00:54
β—‹ 2015-07-19 01:56:28
β—‹ 2026-03-15 12:28:00
β—‹A69.172.201.1532016-06-28 β†’ 2017-04-11 Β· 5 obs
β—‹ 2016-02-22 19:13:24
● 2016-06-28 14:20:46
● 2017-04-11 03:54:08
β—‹ 2019-08-09 17:18:04
β—‹ 2026-03-15 12:28:00
β—‹A69.172.201.2082015-07-19 β†’ 2016-02-22 Β· 5 obs
β—‹ 2007-10-24 11:00:54
● 2015-07-19 01:56:28
● 2016-02-22 19:13:24
β—‹ 2016-06-28 14:20:46
β—‹ 2026-03-15 12:28:00

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...-
underlords.coma22-67.akam.net, a2-64.akam.net, a7-66.akam.net, a9-66.akam.net...-

βœ… Authoritative Response

Server: 184.85.248.66

NS records: a22-67.akam.net, a2-64.akam.net, a7-66.akam.net, a9-66.akam.net, a24-64.akam.net, a1-194.akam.net

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for underlords.com (unsigned zone)

⏱️ Timing

Total: 1470ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1104.94.122.13
NS6a9-66.akam.net, a24-64.akam.net...
MX2us-smtp-inbound-2.mimecast.com (pri: 10), us-smtp-inbound-1.mimecast.com (pri: 10)
TXT2v=spf1 mx include:_netblocks.mimecast.co, 4vq1wtk9bf4mth9751w4yvn0nyszh55y
SOA1ns1.valvesoftware.com admin.valvesoftwar

Analysis

Hierarchy

underlords.com is the parent of www.underlords.com.

IP Addresses

underlords.com resolves to one IP number: 104.94.122.13.

Other host names, for instance a104-94-122-13.deploy.static.akamaitechnologies.com, share IP numbers with underlords.com.

Name Servers

underlords.com is delegated to seven name servers: ns1.valvesoftware.com, a1-194.akam.net, a2-64.akam.net, a22-67.akam.net, a24-64.akam.net, a7-66.akam.net and a9-66.akam.net.

underlords.com at least partially shares name servers with other domains, for instance vantev.com, test-migration.com, emc-rflabs.com, barclaysplansatwork.net and timberloop.jp.

These name servers are commonly used with the following name servers: a11-67.akam.net, a26-65.akam.net, a9-67.akam.net, a3-65.akam.net, a1-164.akam.net, a8-66.akam.net, a3-64.akam.net, a4-67.akam.net, a18-66.akam.net and a6-65.akam.net.

Hosts with two IPs:

a1-194.akam.net points to 2600:1401:2::c2 and 193.108.91.194

a2-64.akam.net points to 2600:1480:7000::40 and 95.100.174.64

a22-67.akam.net points to 2600:1480:7800::43 and 23.211.61.67

a24-64.akam.net points to 2600:1480:9800::40 and 2.16.130.64

a7-66.akam.net points to 2600:1406:32::42 and 23.61.199.66

a9-66.akam.net points to 2a02:26f0:117::42 and 184.85.248.66

Hosts with one IP:

ns1.valvesoftware.com points to 208.64.203.134

Mail Servers

Two mail servers handle underlords.com: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

underlords.com shares the same mail server setup as other domains, for instance hostingats.com, atlasrestaurant.com, komlawfirm.com, chasenboscolo.com and gsblegal.com.

underlords.com shares at least some mail servers with other domains, including mail.trianglepump.com, nissanofgreenville.com, ballinger.com and fecelectric.com.

Host names with six IP numbers:

The host names us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com point to: 170.10.128.141, 170.10.128.221, 170.10.128.242, 170.10.132.141, 170.10.132.221 and 170.10.132.242.

Host names that point to 170.10.128.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.128.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.128.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.