sciquest.com - dns.ninja

`sciquest.com`

DNSSEC	🔒 Signed (DS record present)
A	52.45.119.21^{🇺🇸 Amazon52.44.0.0/15 EC2 Region prefix}
		PTR	`ec2-52-45-119-21.compute-1.amazonaws.com`
A	98.88.180.184^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
A	100.57.75.97^{🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix}
NS	`ns-1044.awsdns-02.org` ⭐
		A	2600:9000:5304:1400::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1044.awsdns-02.org`
		A	205.251.196.20^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1044.awsdns-02.org`
NS	`ns-1779.awsdns-30.co.uk`
		A	2600:9000:5306:f300::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1779.awsdns-30.co.uk`
		A	205.251.198.243^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1779.awsdns-30.co.uk`
NS	`ns-335.awsdns-41.com`
		A	2600:9000:5301:4f00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-335.awsdns-41.com`
		A	205.251.193.79^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-335.awsdns-41.com`
NS	`ns-955.awsdns-55.net`
		A	2600:9000:5303:bb00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-955.awsdns-55.net`
		A	205.251.195.187^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-955.awsdns-55.net`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`_globalsign-domain-verification=GkxPzEuYVQWvgIl83Y9DevKgOZz74vA0Jw_g-CNndE`
TXT	`_globalsign-domain-verification=buVkI-v9UlENj9CirgPBmlDXJ1m6qWE8K-ymsXBF37`
TXT	`_globalsign-domain-verification=f1CEuYg6LkgjcF63SyAB6LR6hnB0qxidPLtFBh9jEV`
TXT	`_globalsign-domain-verification=oXYCTPjpXbwq-dM3XvJlQSfi_WTssG1rx_pomHc0H2`
TXT	`v=spf1 ip4:199.188.157.80/32 ip4:147.78.32.80/32 ip4:173.252.161.148/32 ip4:1...`
SOA	`ns-1044.awsdns-02.org`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1781475360

rank #209776 globally
rank #89930 in the tld
WOT: SAFE (63/100)
📈 Tranco rank: #113,642

Subdomains

envistaisource.sciquest.com

integrations.sciquest.com

www.sciquest.com

usertest.sciquest.com

gi-buapp-us.sciquest.com

mail.sciquest.com

supplier.sciquest.com

mobile.sciquest.com

gi-api-us.sciquest.com

sqwmdev.sciquest.com

webmail.sciquest.com

go.sciquest.com

solutions.sciquest.com

sciwmtest.sciquest.com

uitweb.sciquest.com

Same first word

sciquest.biz

sciquest.co.nz

sciquest.org.nz

sciquest.app

sciquest.org

sciquest.info

sciquest.net

sciquest.com

Similar names

questics.com

questcsi.com

itsuqces.pl

DNS History

51 records (9 active, 42 former)

●NSns-1044.awsdns-02.org2018-10-15 → 2026-06-14 · 3 obs

○ 2018-05-31 20:12:42
● 2018-10-15 18:15:36
● 2026-06-14 22:37:18

○NSns-1479.awsdns-56.org2018-04-05 → 2018-05-31 · 5 obs

○ 2017-07-30 14:37:28
● 2018-04-05 16:34:16
● 2018-05-31 20:12:42
○ 2018-10-15 18:15:36
○ 2026-06-14 22:37:18

○NSns-1560.awsdns-03.co.uk2018-04-05 → 2018-05-31 · 5 obs

○ 2017-07-30 14:37:28
● 2018-04-05 16:34:16
● 2018-05-31 20:12:42
○ 2018-10-15 18:15:36
○ 2026-06-14 22:37:18

●NSns-1779.awsdns-30.co.uk2018-10-15 → 2026-06-14 · 3 obs

○ 2018-05-31 20:12:42
● 2018-10-15 18:15:36
● 2026-06-14 22:37:18

○NSns-241.awsdns-30.com2018-04-05 → 2018-05-31 · 5 obs

○ 2017-07-30 14:37:28
● 2018-04-05 16:34:16
● 2018-05-31 20:12:42
○ 2018-10-15 18:15:36
○ 2026-06-14 22:37:18

●NSns-335.awsdns-41.com2018-10-15 → 2026-06-14 · 3 obs

○ 2018-05-31 20:12:42
● 2018-10-15 18:15:36
● 2026-06-14 22:37:18

○NSns-935.awsdns-52.net2018-04-05 → 2018-05-31 · 5 obs

○ 2017-07-30 14:37:28
● 2018-04-05 16:34:16
● 2018-05-31 20:12:42
○ 2018-10-15 18:15:36
○ 2026-06-14 22:37:18

●NSns-955.awsdns-55.net2018-10-15 → 2026-06-14 · 3 obs

○ 2018-05-31 20:12:42
● 2018-10-15 18:15:36
● 2026-06-14 22:37:18

○NSns1.sungardns.com2015-08-08 → 2017-07-30 · 4 obs

● 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○NSns1.vxchnge.net2017-07-30 → 2017-07-30 · 4 obs

○ 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○NSns2.sungardns.com2015-08-08 → 2017-07-30 · 4 obs

● 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○NSns2.vxchnge.net2017-07-30 → 2017-07-30 · 4 obs

○ 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○NSns3.sungardns.com2015-08-08 → 2017-07-30 · 4 obs

● 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○NSns3.vxchnge.net2017-07-30 → 2017-07-30 · 4 obs

○ 2015-08-08 00:23:54
● 2017-07-30 14:37:28
○ 2018-04-05 16:34:16
○ 2026-06-14 22:37:18

○MXalt1.aspmx.l.google.com2016-04-19 → 2016-06-23 · 5 obs

○ 2016-01-29 01:54:50
● 2016-04-19 12:59:20
● 2016-06-23 19:41:46
○ 2016-07-15 08:44:56
○ 2026-06-14 22:37:18

○MXalt2.aspmx.l.google.com2016-04-19 → 2016-06-23 · 5 obs

○ 2016-01-29 01:54:50
● 2016-04-19 12:59:20
● 2016-06-23 19:41:46
○ 2016-07-15 08:44:56
○ 2026-06-14 22:37:18

○MXalt3.aspmx.l.google.com2016-04-19 → 2016-06-23 · 5 obs

○ 2016-01-29 01:54:50
● 2016-04-19 12:59:20
● 2016-06-23 19:41:46
○ 2016-07-15 08:44:56
○ 2026-06-14 22:37:18

○MXalt4.aspmx.l.google.com2016-04-19 → 2016-06-23 · 5 obs

○ 2016-01-29 01:54:50
● 2016-04-19 12:59:20
● 2016-06-23 19:41:46
○ 2016-07-15 08:44:56
○ 2026-06-14 22:37:18

○MXaspmx.l.google.com2016-04-19 → 2016-06-23 · 5 obs

○ 2016-01-29 01:54:50
● 2016-04-19 12:59:20
● 2016-06-23 19:41:46
○ 2016-07-15 08:44:56
○ 2026-06-14 22:37:18

○MXsciquest.com.s9a1.psmtp.com2015-08-08 → 2016-01-29 · 4 obs

● 2015-08-08 00:23:54
● 2016-01-29 01:54:50
○ 2016-04-19 12:59:20
○ 2026-06-14 22:37:18

○MXsciquest.com.s9a2.psmtp.com2015-08-08 → 2016-01-29 · 4 obs

● 2015-08-08 00:23:54
● 2016-01-29 01:54:50
○ 2016-04-19 12:59:20
○ 2026-06-14 22:37:18

○MXsciquest.com.s9b1.psmtp.com2015-08-08 → 2016-01-29 · 4 obs

● 2015-08-08 00:23:54
● 2016-01-29 01:54:50
○ 2016-04-19 12:59:20
○ 2026-06-14 22:37:18

○MXsciquest.com.s9b2.psmtp.com2015-08-08 → 2016-01-29 · 4 obs

● 2015-08-08 00:23:54
● 2016-01-29 01:54:50
○ 2016-04-19 12:59:20
○ 2026-06-14 22:37:18

●MXus-smtp-inbound-1.mimecast.com2016-07-15 → 2026-06-14 · 3 obs

○ 2016-06-23 19:41:46
● 2016-07-15 08:44:56
● 2026-06-14 22:37:18

●MXus-smtp-inbound-2.mimecast.com2016-07-15 → 2026-06-14 · 3 obs

○ 2016-06-23 19:41:46
● 2016-07-15 08:44:56
● 2026-06-14 22:37:18

○A100.25.177.1972026-05-02 → 2026-05-02 · 4 obs

○ 2026-04-13 03:22:18
● 2026-05-02 11:16:18
○ 2026-05-04 18:58:36
○ 2026-06-14 22:37:18

○A100.29.170.1952026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-18 21:15:32
● 2026-02-25 14:25:42
○ 2026-03-10 16:15:48
○ 2026-06-14 22:37:18

○A100.51.22.592026-05-02 → 2026-05-10 · 5 obs

○ 2026-04-13 03:22:18
● 2026-05-02 11:16:18
● 2026-05-10 13:15:02
○ 2026-05-13 06:07:24
○ 2026-06-14 22:37:18

○A100.55.114.2522026-03-10 → 2026-03-17 · 5 obs

○ 2026-02-25 14:25:42
● 2026-03-10 16:15:48
● 2026-03-17 10:39:56
○ 2026-04-04 05:04:08
○ 2026-06-14 22:37:18

●A100.57.75.972026-06-13 → 2026-06-14 · 3 obs

○ 2026-05-13 06:07:24
● 2026-06-13 20:14:02
● 2026-06-14 22:37:18

○A13.216.156.1542026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-18 21:15:32
● 2026-02-25 14:25:42
○ 2026-03-10 16:15:48
○ 2026-06-14 22:37:18

○A13.218.253.1892026-05-04 → 2026-05-13 · 5 obs

○ 2026-05-02 11:16:18
● 2026-05-04 18:58:36
● 2026-05-13 06:07:24
○ 2026-06-13 20:14:02
○ 2026-06-14 22:37:18

○A13.223.17.2302026-05-02 → 2026-05-02 · 4 obs

○ 2026-04-13 03:22:18
● 2026-05-02 11:16:18
○ 2026-05-04 18:58:36
○ 2026-06-14 22:37:18

○A18.233.206.962026-03-10 → 2026-03-17 · 5 obs

○ 2026-02-25 14:25:42
● 2026-03-10 16:15:48
● 2026-03-17 10:39:56
○ 2026-04-04 05:04:08
○ 2026-06-14 22:37:18

○A3.210.29.2002026-02-15 → 2026-02-18 · 5 obs

○ 2021-06-03 04:51:44
● 2026-02-15 15:25:36
● 2026-02-18 21:15:32
○ 2026-02-25 14:25:42
○ 2026-06-14 22:37:18

○A3.225.193.1472026-04-04 → 2026-04-09 · 5 obs

○ 2026-03-17 10:39:56
● 2026-04-04 05:04:08
● 2026-04-09 09:59:26
○ 2026-04-11 03:24:48
○ 2026-06-14 22:37:18

○A34.196.142.242026-03-10 → 2026-03-10 · 4 obs

○ 2026-02-25 14:25:42
● 2026-03-10 16:15:48
○ 2026-03-17 10:39:56
○ 2026-06-14 22:37:18

○A34.196.239.1082026-02-25 → 2026-02-25 · 4 obs

○ 2026-02-18 21:15:32
● 2026-02-25 14:25:42
○ 2026-03-10 16:15:48
○ 2026-06-14 22:37:18

○A34.202.183.22026-02-15 → 2026-02-18 · 5 obs

○ 2021-06-03 04:51:44
● 2026-02-15 15:25:36
● 2026-02-18 21:15:32
○ 2026-02-25 14:25:42
○ 2026-06-14 22:37:18

○A34.206.8.1842026-04-11 → 2026-04-13 · 5 obs

○ 2026-04-09 09:59:26
● 2026-04-11 03:24:48
● 2026-04-13 03:22:18
○ 2026-05-02 11:16:18
○ 2026-06-14 22:37:18

○A34.224.172.2082026-03-17 → 2026-03-17 · 4 obs

○ 2026-03-10 16:15:48
● 2026-03-17 10:39:56
○ 2026-04-04 05:04:08
○ 2026-06-14 22:37:18

○A34.227.1.432026-04-09 → 2026-04-13 · 5 obs

○ 2026-04-04 05:04:08
● 2026-04-09 09:59:26
● 2026-04-13 03:22:18
○ 2026-05-02 11:16:18
○ 2026-06-14 22:37:18

○A44.208.58.592026-02-15 → 2026-02-18 · 5 obs

○ 2021-06-03 04:51:44
● 2026-02-15 15:25:36
● 2026-02-18 21:15:32
○ 2026-02-25 14:25:42
○ 2026-06-14 22:37:18

○A44.214.213.1462026-04-04 → 2026-04-13 · 5 obs

○ 2026-03-17 10:39:56
● 2026-04-04 05:04:08
● 2026-04-13 03:22:18
○ 2026-05-02 11:16:18
○ 2026-06-14 22:37:18

○A52.20.64.1522026-04-04 → 2026-04-04 · 4 obs

○ 2026-03-17 10:39:56
● 2026-04-04 05:04:08
○ 2026-04-09 09:59:26
○ 2026-06-14 22:37:18

○A52.3.10.1952026-05-09 → 2026-05-13 · 5 obs

○ 2026-05-04 18:58:36
● 2026-05-09 06:39:40
● 2026-05-13 06:07:24
○ 2026-06-13 20:14:02
○ 2026-06-14 22:37:18

●A52.45.119.212026-06-13 → 2026-06-14 · 3 obs

○ 2026-05-13 06:07:24
● 2026-06-13 20:14:02
● 2026-06-14 22:37:18

○A54.158.40.1382026-05-13 → 2026-05-13 · 4 obs

○ 2026-05-10 13:15:02
● 2026-05-13 06:07:24
○ 2026-06-13 20:14:02
○ 2026-06-14 22:37:18

○A54.235.79.1002015-08-08 → 2021-06-03 · 7 obs

● 2015-08-08 00:23:54
● 2016-07-15 08:44:56
○ 2016-08-18 21:30:16
● 2016-10-21 03:00:24
● 2021-06-03 04:51:44
○ 2026-02-15 15:25:36
○ 2026-06-14 22:37:18

○A54.243.41.2532026-05-04 → 2026-05-04 · 4 obs

○ 2026-05-02 11:16:18
● 2026-05-04 18:58:36
○ 2026-05-09 06:39:40
○ 2026-06-14 22:37:18

●A98.88.180.1842026-06-13 → 2026-06-14 · 3 obs

○ 2026-05-13 06:07:24
● 2026-06-13 20:14:02
● 2026-06-14 22:37:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net...	-
sciquest.com	ns-335.awsdns-41.com, ns-955.awsdns-55.net, ns-1044.awsdns-02.org, ns-1779.awsdns-30.co.uk	2 records

✅ Authoritative Response

Server:205.251.196.20

NS records: ns-335.awsdns-41.com, ns-955.awsdns-55.net, ns-1044.awsdns-02.org, ns-1779.awsdns-30.co.uk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 579ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`98.88.180.184, 52.45.119.21...`
NS	4	`ns-1044.awsdns-02.org, ns-1779.awsdns-30.co.uk...`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	5	`_globalsign-domain-verification=GkxPzEuY, _globalsign-domain-verification=buVkI-v9...`
SOA	1	`ns-1044.awsdns-02.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-335.awsdns-41.com, ns-335.awsdns-41.com)

Analysis

Hierarchy

The host names envistaisource.sciquest.com, integrations.sciquest.com, www.sciquest.com, usertest.sciquest.com and gi-buapp-us.sciquest.com — among a few others — fall under the parent domain sciquest.com.

IP Addresses

sciquest.com points to three IP numbers, namely 52.45.119.21, 98.88.180.184 and 100.57.75.97.

bravosolutions.mx, upsidesoft.org, combinenet.com plus two other host names have IP numbers in common with sciquest.com.

Name Servers

Four name servers handle the delegation for sciquest.com: ns-335.awsdns-41.com, ns-955.awsdns-55.net, ns-1044.awsdns-02.org and ns-1779.awsdns-30.co.uk.

At least some of sciquest.com's name servers are shared with other domains, for example d20d8w3ddll6kn.cloudfront.net, nohsathletics.com, d3auqjp9k352qd.cloudfront.net and two more.

It is common for these name servers to be used in conjunction with the name servers ns-1674.awsdns-17.co.uk, ns-874.awsdns-45.net and ns-1528.awsdns-63.org.

Four hostnames, each resolving to a pair of IP addresses: ns-335.awsdns-41.com directs to 205.251.193.79 and 2600:9000:5301:4f00::1; ns-955.awsdns-55.net directs to 205.251.195.187 and 2600:9000:5303:bb00::1; ns-1044.awsdns-02.org directs to 205.251.196.20 and 2600:9000:5304:1400::1; ns-1779.awsdns-30.co.uk directs to 205.251.198.243 and 2600:9000:5306:f300::1.

Mail Servers

sciquest.com uses two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

The mail server setup of sciquest.com matches that of other domains such as muchshelist.com, electronicpayments.org, usfederalcu.org and two others.

sciquest.com overlaps on mail servers with several other domains, for example cgini.com, raventrans.com, amhsi.org and keetonlease.com.

Hosts with 6 IP addresses each:

us-smtp-inbound-1.mimecast.com carries IP addresses 170.10.128.141, 170.10.128.221 and 170.10.128.242, with 3 other addresses beyond those.

us-smtp-inbound-2.mimecast.com carries IP addresses 170.10.128.141, 170.10.128.221 and 170.10.128.242, with 3 other addresses beyond those.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.242 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.242 IP addresses.