darkreading.com - robtex.com

darkreading.com

DNSSEC⚠️ Not signed
A2606:4700::6810:ddab🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:deab🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:dfab🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:e0ab🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:e1ab🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.221.171Cloudflare104.16.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.222.171Cloudflare104.16.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.223.171Cloudflare104.16.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.224.171Cloudflare104.16.224.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.225.171Cloudflare104.16.224.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSns1.ubmdns.com ⭐
A2400:cb00:2049:1::a29f:d0🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
PTRns1.ubmdns.com
A162.159.0.208Cloudflare162.159.0.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.ubmdns.com
A2400:cb00:2049:1::a29f:1d0🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
PTRns2.ubmdns.com
A162.159.1.208Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.ubmdns.com
MXus-smtp-inbound-1.mimecast.com ⭐
A170.10.128.141🇺🇸 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
A170.10.128.221🇺🇸 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
A170.10.128.242🇺🇸 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
A170.10.132.141🇺🇸 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
A170.10.132.221🇺🇸 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
A170.10.132.242🇺🇸 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 ⭐
A170.10.128.141🇺🇸 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
A170.10.128.221🇺🇸 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
A170.10.128.242🇺🇸 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
A170.10.132.141🇺🇸 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
A170.10.132.221🇺🇸 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
A170.10.132.242🇺🇸 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
TXTMS=ms17477081
TXTMS=ms41447875
TXTMS=ms44788990
TXTMS=ms62813886
TXTgoogle-site-verification=CrbTRNIj3fecxMfHLR0SlvqdF8n2ProsjOnXw5TcAa4
TXTgoogle-site-verification=RmY7DftliqtrwWVRvoYpyKyNXICeQvORa8D0uSvvkdQ
TXTgoogle-site-verification=TGEUCGu_ALeBVz8gKNRMVX9ANdFOv2y2C5bU3h-ujhE
TXTgoogle-site-verification=sUVJRoxhgiTGCs1tn14SqTGQTlYx0dSLlpSrY5Q8Cas
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.16.221.171, 104.16.222.171, 104.16.223.171, 104.16.224.171, 104.16.225.171
IPv6 hints2606:4700::6810:ddab, 2606:4700::6810:deab, 2606:4700::6810:dfab, 2606:4700::6810:e0ab, 2606:4700::6810:e1ab
SOAns1.ubmdns.comdns@cloudflare.com serial=2403817635

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778334696
rank #3825 globally
rank #1953 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #14,851

Subdomains

www.darkreading.com
registrations.darkreading.com
c.darkreading.com
crashcourse.darkreading.com
event.darkreading.com
trk.darkreading.com

Same first word

darkreading.com
darkreading.tv
darkreading.eu
darkreading.net
darkreading.org
darkreading.mobi

Similar names

kadrandergi.com.tr
daringdrake.com

DNS History

48 records (14 active, 34 former)

200920112013201520172019202120232025NSns1.ubmdns.comns2.ubmdns.commay.ns.cloudflare.comns1.ubm-us.netns2.ubm-us.netns3.ubm-us.netrick.ns.cloudflare.comMXus-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comeu-smtp-inbound-1.mimecast.comeu-smtp-inbound-2.mimecast.comA104.16.221.171104.16.222.171104.16.223.171104.16.224.171104.16.225.1712606:4700::6810:ddab2606:4700::6810:deab2606:4700::6810:dfab2606:4700::6810:e0ab2606:4700::6810:e1ab104.17.117.99104.17.118.99104.17.119.99104.17.120.99104.17.121.99104.28.12.91104.28.13.91192.155.48.162192.155.48.812400:cb00:2048:1::6811:75632400:cb00:2048:1::6811:76632400:cb00:2048:1::6811:77632400:cb00:2048:1::6811:78632400:cb00:2048:1::6811:79632400:cb00:2048:1::681c:c5b2400:cb00:2048:1::681c:d5b2606:4700::6811:75632606:4700::6811:76632606:4700::6811:77632606:4700::6811:78632606:4700::6811:79632620:103::192:155:48:81
○NSmay.ns.cloudflare.com2016-03-07 → 2017-11-21 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○NSns1.ubm-us.net2015-07-06 → 2016-01-27 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2016-01-27 14:50:16
○ 2016-03-07 11:26:18
○ 2026-05-09 14:10:04
●NSns1.ubmdns.com2018-11-02 → 2026-05-09 · 3 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2026-05-09 14:10:04
○NSns2.ubm-us.net2015-07-06 → 2016-01-27 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2016-01-27 14:50:16
○ 2016-03-07 11:26:18
○ 2026-05-09 14:10:04
●NSns2.ubmdns.com2018-11-02 → 2026-05-09 · 3 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2026-05-09 14:10:04
○NSns3.ubm-us.net2015-07-06 → 2016-01-27 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2016-01-27 14:50:16
○ 2016-03-07 11:26:18
○ 2026-05-09 14:10:04
○NSrick.ns.cloudflare.com2016-03-07 → 2017-11-21 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○MXalt1.aspmx.l.google.com2015-07-06 → 2017-02-14 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○MXalt2.aspmx.l.google.com2015-07-06 → 2017-02-14 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○MXalt3.aspmx.l.google.com2015-07-06 → 2017-02-14 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○MXalt4.aspmx.l.google.com2015-07-06 → 2017-02-14 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○MXaspmx.l.google.com2015-07-06 → 2017-02-14 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○MXeu-smtp-inbound-1.mimecast.com2017-11-21 → 2018-11-02 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2018-11-02 02:26:50
○ 2019-09-05 15:59:00
○ 2026-05-09 14:10:04
○MXeu-smtp-inbound-2.mimecast.com2017-11-21 → 2018-11-02 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2018-11-02 02:26:50
○ 2019-09-05 15:59:00
○ 2026-05-09 14:10:04
●MXus-smtp-inbound-1.mimecast.com2019-09-05 → 2026-05-09 · 3 obs
○ 2018-11-02 02:26:50
● 2019-09-05 15:59:00
● 2026-05-09 14:10:04
●MXus-smtp-inbound-2.mimecast.com2019-09-05 → 2026-05-09 · 3 obs
○ 2018-11-02 02:26:50
● 2019-09-05 15:59:00
● 2026-05-09 14:10:04
●A104.16.221.1712026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A104.16.222.1712026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A104.16.223.1712026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A104.16.224.1712026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A104.16.225.1712026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
○A104.17.117.992017-11-21 → 2020-12-07 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A104.17.118.992017-11-21 → 2020-12-07 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A104.17.119.992017-11-21 → 2020-12-07 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A104.17.120.992017-11-21 → 2020-12-07 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A104.17.121.992017-11-21 → 2020-12-07 · 5 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A104.28.12.912016-03-07 → 2017-02-14 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○A104.28.13.912016-03-07 → 2017-02-14 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○A192.155.48.1622015-12-30 → 2016-01-27 · 5 obs
○ 2015-11-30 12:59:34
● 2015-12-30 05:44:04
● 2016-01-27 14:50:16
○ 2016-03-07 11:26:18
○ 2026-05-09 14:10:04
○A192.155.48.812015-07-06 → 2015-11-30 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2015-11-30 12:59:34
○ 2015-12-30 05:44:04
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::6811:75632017-11-21 → 2017-11-21 · 4 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::6811:76632017-11-21 → 2017-11-21 · 4 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::6811:77632017-11-21 → 2017-11-21 · 4 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::6811:78632017-11-21 → 2017-11-21 · 4 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::6811:79632017-11-21 → 2017-11-21 · 4 obs
○ 2017-02-14 06:45:24
● 2017-11-21 18:51:34
○ 2018-11-02 02:26:50
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::681c:c5b2016-03-07 → 2017-02-14 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
○A2400:cb00:2048:1::681c:d5b2016-03-07 → 2017-02-14 · 5 obs
○ 2016-01-27 14:50:16
● 2016-03-07 11:26:18
● 2017-02-14 06:45:24
○ 2017-11-21 18:51:34
○ 2026-05-09 14:10:04
●A2606:4700::6810:ddab2026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A2606:4700::6810:deab2026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A2606:4700::6810:dfab2026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A2606:4700::6810:e0ab2026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
●A2606:4700::6810:e1ab2026-02-28 → 2026-05-09 · 3 obs
○ 2020-12-07 10:34:50
● 2026-02-28 21:43:10
● 2026-05-09 14:10:04
○A2606:4700::6811:75632018-11-02 → 2020-12-07 · 5 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A2606:4700::6811:76632018-11-02 → 2020-12-07 · 5 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A2606:4700::6811:77632018-11-02 → 2020-12-07 · 5 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A2606:4700::6811:78632018-11-02 → 2020-12-07 · 5 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A2606:4700::6811:79632018-11-02 → 2020-12-07 · 5 obs
○ 2017-11-21 18:51:34
● 2018-11-02 02:26:50
● 2020-12-07 10:34:50
○ 2026-02-28 21:43:10
○ 2026-05-09 14:10:04
○A2620:103::192:155:48:812015-07-06 → 2015-11-30 · 5 obs
○ 2008-11-15 10:31:52
● 2015-07-06 02:09:08
● 2015-11-30 12:59:34
○ 2015-12-30 05:44:04
○ 2026-05-09 14:10:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net...-
darkreading.comns1.ubmdns.com, ns2.ubmdns.com2 records

✅ Authoritative Response

Server:162.159.1.208

NS records: ns1.ubmdns.com, ns2.ubmdns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 393ms | Queries: -

📄 Records

TypeCountSample Data
A5104.16.221.171, 104.16.222.171...
AAAA52606:4700::6810:dfab, 2606:4700::6810:ddab...
NS2ns1.ubmdns.com, ns2.ubmdns.com
MX2us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)
TXT8MS=ms17477081, MS=ms41447875...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ns1.ubmdns.com dns.cloudflare.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.ubmdns.com, ns2.ubmdns.com)

Analysis

Hierarchy

darkreading.com is the parent of www.darkreading.com, registrations.darkreading.com, c.darkreading.com, crashcourse.darkreading.com, event.darkreading.com and a few other host names.

IP Addresses

Ten IP numbers are pointed to by darkreading.com: 2606:4700::6810:ddab, 2606:4700::6810:deab, 2606:4700::6810:dfab, 2606:4700::6810:e0ab, 2606:4700::6810:e1ab, 104.16.221.171, 104.16.222.171, 104.16.223.171, 104.16.224.171 and 104.16.225.171.

For instance, other host names www.darkreading.com, registrations.darkreading.com, c.darkreading.com, crashcourse.darkreading.com and event.darkreading.com share IP numbers with darkreading.com.

Name Servers

darkreading.com is delegated to two name servers: ns1.ubmdns.com and ns2.ubmdns.com.

darkreading.com uses the same name server setup as other domains such as eetevents.com, darkreading.eu, educationalit.com, nstexpo.com and globalsecurity-summit.com.

Host names with two IP numbers:

ns1.ubmdns.com points to 2400:cb00:2049:1::a29f:d0 and 162.159.0.208; ns2.ubmdns.com points to 2400:cb00:2049:1::a29f:1d0 and 162.159.1.208.

Mail Servers

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

darkreading.com shares the same mail server setup as other domains, for instance qxzi.net, lklinsurance.com, shureasia.com, amadante.com and sandersonford.com.

darkreading.com shares mail servers with other domains at least partially; for instance kkrfs.com, kansasstatebank.com, mailitflow.com, runbook.com and phd3.idaho.gov.

Host names with six IP numbers:

Name us-smtp-inbound-1.mimecast.com points 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.

Name us-smtp-inbound-2.mimecast.com points 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.

Names pointing to 170.10.128.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Names pointing to 170.10.128.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Names pointing to 170.10.128.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Names pointing to 170.10.132.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Names pointing to 170.10.132.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Names pointing to 170.10.132.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.