isma.com - dns.ninja

`isma.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6811:8968^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700::6811:8a68^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700::6811:8b68^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700::6811:8c68^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	2606:4700::6811:8d68^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.137.104^{Cloudflare104.17.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.138.104^{Cloudflare104.17.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.139.104^{Cloudflare104.17.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.140.104^{Cloudflare104.17.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.141.104^{Cloudflare104.17.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`igor.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c177^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`igor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2177^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`igor.ns.cloudflare.com`
		A	108.162.193.119^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	172.64.33.119^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	173.245.59.119^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
NS	`vita.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vita.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vita.ns.cloudflare.com`
		A	108.162.192.238^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	172.64.32.238^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	173.245.58.238^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
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	`201707252120162rd4mz67g1mp6xxa6tyuw8to8sgkbygllwvjmx61z72wov47n3`
TXT	`MS=ms34012009`
TXT	`v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ...`
SOA	`igor.ns.cloudflare.com`dns@cloudflare.com serial=2410899897

`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=1785528562

Subdomains

www.isma.com

Same first word

isma.edu.pk

isma.edu.pa

isma.pro

isma.cn

isma.org

isma.me

isma.in

isma.ch

isma.org.my

isma.lol

isma.info

isma.co

isma.de

isma.com.br

isma.kharkiv.ua

isma.cl

isma.ws

isma.fi

isma.it

isma.my

isma.events

isma.org.in

isma.ru

isma.eu

isma.net

isma.com.mx

isma.jp

isma.pt

isma.roma.it

isma.us

isma.mx

isma.ca

isma.com

isma.be

isma.lv

isma.tm.fr

isma.org.br

isma.com.tw

isma.edu.ar

isma.com.au

isma.se

isma.kharkov.ua

isma.org.uk

isma.ma

isma.tv

isma.at

isma.es

Similar names

sami.com.cn

amis.one

isam.sg

misa.on.ca

amsi.at

isam.my

amis.edu.vn

iams.my

aism.org

iams.com.tw

mias.me

mais.my

aims.africa

saim.fr

sima.pt

asmi.ch

amsi.tech

isam.ru

imsa.com.es

aims.net.cn

imas.net.br

sami.es

misa.pl

smai.net

siam.digital

msai.ca

amsi.org.au

sima.cat

isam.ir

aims.com.my

iasm.cl

smai.fr

sami.jp

siam.de

asim.ca

mias.cl

asmi.fr

sima.ai

misa.studio

msia.biz

aism.cat

iams.de

aims.us.com

smia.org.uk

saim.es

amis.uk

siam.recipes

aims.today

sima.ru

asim.pro

isam.mx

amis.go.kr

siam.tn

smia.org

msia.co.uk

sima.cr

aims.services

asmi.org

smai.li

smia.insure

amsi.ca

aims.jp

iams.ru

asim.id

siam.cz

siam.co.jp

msia.net.cn

aims.co.nz

aims.org.tw

sima.io

mias.com

iams.org

asmi.it

amis.network

imas.cl

sima.bg

asim.de

mais.social

mais.nu

sami.ch

siam.com.hk

imsa.com.ar

sima.com.ua

isam.is

iams.us

aims.edu.ph

sami.in

siam.nyc

masi.cz

mias.pro

isam.cl

masi.tv

aims.cc

sami.ee

aims.org.au

imas.org.br

mais.si

isam.ch

iams.com.sg

amsi.com.mx

asim.fr

mais.asia

sami.ie

sami.photography

aims.vn

siam.villas

aims.financial

smai.ch

sami.moscow

DNS History

43 records (14 active, 29 former)

○NSabby.ns.cloudflare.com2015-08-31 → 2017-09-11 · 4 obs

● 2015-08-31 04:09:46
● 2017-09-11 16:41:00
○ 2020-03-05 19:28:54
○ 2026-07-31 20:11:20

●NSigor.ns.cloudflare.com2026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

○NSisaac.ns.cloudflare.com2020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○NStheo.ns.cloudflare.com2015-08-31 → 2017-09-11 · 4 obs

● 2015-08-31 04:09:46
● 2017-09-11 16:41:00
○ 2020-03-05 19:28:54
○ 2026-07-31 20:11:20

○NSvida.ns.cloudflare.com2020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

●NSvita.ns.cloudflare.com2026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

○MXisma-com.mail.protection.outlook.com2016-04-01 → 2020-03-05 · 5 obs

○ 2016-03-01 00:30:12
● 2016-04-01 10:42:40
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○MXmail.isma.com2015-08-31 → 2016-03-01 · 4 obs

● 2015-08-31 04:09:46
● 2016-03-01 00:30:12
○ 2016-04-01 10:42:40
○ 2026-07-31 20:11:20

○MXmail.nerdwerx.com2015-08-31 → 2016-02-11 · 4 obs

● 2015-08-31 04:09:46
● 2016-02-11 18:53:58
○ 2016-03-01 00:30:12
○ 2026-07-31 20:11:20

○MXmail2.isma.com2015-11-28 → 2016-02-11 · 5 obs

○ 2015-11-13 09:30:00
● 2015-11-28 18:51:56
● 2016-02-11 18:53:58
○ 2016-03-01 00:30:12
○ 2026-07-31 20:11:20

○MXmxbackup.nerdwerx.com2015-08-31 → 2015-10-07 · 4 obs

● 2015-08-31 04:09:46
● 2015-10-07 15:50:28
○ 2015-11-13 09:30:00
○ 2026-07-31 20:11:20

○MXoldmail.isma.com2016-03-01 → 2016-03-01 · 4 obs

○ 2016-02-11 18:53:58
● 2016-03-01 00:30:12
○ 2016-04-01 10:42:40
○ 2026-07-31 20:11:20

●MXus-smtp-inbound-1.mimecast.com2026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●MXus-smtp-inbound-2.mimecast.com2026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A104.17.137.1042026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A104.17.138.1042026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A104.17.139.1042026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A104.17.140.1042026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A104.17.141.1042026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

○A104.25.14.42015-11-18 → 2015-12-18 · 5 obs

○ 2015-11-13 09:30:00
● 2015-11-18 20:42:48
● 2015-12-18 17:45:54
○ 2016-01-20 11:04:32
○ 2026-07-31 20:11:20

○A104.25.15.42015-11-18 → 2015-12-18 · 5 obs

○ 2015-11-13 09:30:00
● 2015-11-18 20:42:48
● 2015-12-18 17:45:54
○ 2016-01-20 11:04:32
○ 2026-07-31 20:11:20

○A104.25.44.182016-02-11 → 2017-09-11 · 9 obs

○ 2016-01-25 03:02:06
● 2016-02-11 18:53:58
● 2016-04-01 10:42:40
○ 2016-04-13 03:54:58
○ 2016-07-08 05:08:02
● 2016-07-29 04:58:22
● 2017-09-11 16:41:00
○ 2020-03-05 19:28:54
○ 2026-07-31 20:11:20

○A104.25.45.182016-02-11 → 2017-09-11 · 9 obs

○A104.28.6.952016-01-20 → 2016-01-25 · 5 obs

○ 2015-12-18 17:45:54
● 2016-01-20 11:04:32
● 2016-01-25 03:02:06
○ 2016-02-11 18:53:58
○ 2026-07-31 20:11:20

○A104.28.7.952016-01-20 → 2016-01-25 · 5 obs

○ 2015-12-18 17:45:54
● 2016-01-20 11:04:32
● 2016-01-25 03:02:06
○ 2016-02-11 18:53:58
○ 2026-07-31 20:11:20

○A104.31.86.612020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○A104.31.87.612020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○A2400:cb00:2048:1::6819:2c122016-02-11 → 2017-09-11 · 9 obs

○A2400:cb00:2048:1::6819:2d122016-02-11 → 2017-09-11 · 9 obs

○A2400:cb00:2048:1::6819:e042015-11-18 → 2015-12-18 · 5 obs

○ 2015-11-13 09:30:00
● 2015-11-18 20:42:48
● 2015-12-18 17:45:54
○ 2016-01-20 11:04:32
○ 2026-07-31 20:11:20

○A2400:cb00:2048:1::6819:f042015-11-18 → 2015-12-18 · 5 obs

○ 2015-11-13 09:30:00
● 2015-11-18 20:42:48
● 2015-12-18 17:45:54
○ 2016-01-20 11:04:32
○ 2026-07-31 20:11:20

○A2400:cb00:2048:1::681c:65f2016-01-20 → 2016-01-25 · 5 obs

○ 2015-12-18 17:45:54
● 2016-01-20 11:04:32
● 2016-01-25 03:02:06
○ 2016-02-11 18:53:58
○ 2026-07-31 20:11:20

○A2400:cb00:2048:1::681c:75f2016-01-20 → 2016-01-25 · 5 obs

○ 2015-12-18 17:45:54
● 2016-01-20 11:04:32
● 2016-01-25 03:02:06
○ 2016-02-11 18:53:58
○ 2026-07-31 20:11:20

●A2606:4700::6811:89682026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A2606:4700::6811:8a682026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A2606:4700::6811:8b682026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A2606:4700::6811:8c682026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

●A2606:4700::6811:8d682026-02-17 → 2026-07-31 · 3 obs

○ 2020-03-05 19:28:54
● 2026-02-17 04:26:14
● 2026-07-31 20:11:20

○A2606:4700:3031::681f:563d2020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○A2606:4700:3032::681f:573d2020-03-05 → 2020-03-05 · 4 obs

○ 2017-09-11 16:41:00
● 2020-03-05 19:28:54
○ 2026-02-17 04:26:14
○ 2026-07-31 20:11:20

○A52.87.13.252016-04-30 → 2016-07-08 · 5 obs

○ 2016-04-13 03:54:58
● 2016-04-30 09:13:08
● 2016-07-08 05:08:02
○ 2016-07-29 04:58:22
○ 2026-07-31 20:11:20

○A66.240.205.202015-08-31 → 2015-10-07 · 4 obs

● 2015-08-31 04:09:46
● 2015-10-07 15:50:28
○ 2015-11-13 09:30:00
○ 2026-07-31 20:11:20

○A71.6.147.1412015-11-13 → 2016-04-13 · 7 obs

○ 2015-10-07 15:50:28
● 2015-11-13 09:30:00
○ 2015-11-18 20:42:48
○ 2016-04-01 10:42:40
● 2016-04-13 03:54:58
○ 2016-04-30 09:13:08
○ 2026-07-31 20:11:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net...	-
isma.com	igor.ns.cloudflare.com, vita.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.238

NS records: igor.ns.cloudflare.com, vita.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isma.com (unsigned zone)

⏱️ Timing

Total: 245ms | Queries: -

📄 Records

Type	Count	Sample Data
A	5	`104.17.140.104, 104.17.138.104...`
AAAA	5	`2606:4700::6811:8d68, 2606:4700::6811:8968...`
NS	2	`igor.ns.cloudflare.com, vita.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	3	`201707252120162rd4mz67g1mp6xxa6tyuw8to8s, MS=ms34012009...`
SOA	1	`igor.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (igor.ns.cloudflare.com, igor.ns.cloudflare.com, igor.ns.cloudflare.com...)

Analysis

Hierarchy

isma.com serves as the parent of www.isma.com.

IP Addresses

isma.com has 10 IP addresses — 104.17.137.104, 104.17.138.104, 104.17.139.104 and 7 more.

securityfund.org, nacpro.org, burgwinwrighthouse.com and two other host names share IP numbers with isma.com.

Name Servers

isma.com uses two name servers for its delegation: igor.ns.cloudflare.com and vita.ns.cloudflare.com.

isma.com uses the same name servers as several other domains — among them uspermafrost.org, lnla.org, stilistauto.it and two more.

isma.com has at least partial name server overlap with other domains, such as marikarpress.com, symw19.com, cymulate.app and two others.

Hostnames that resolve to 6 IP addresses:

Hostname igor.ns.cloudflare.com directs to 108.162.193.119, 172.64.33.119 and 173.245.59.119 along with 3 other IP addresses.

Hostname vita.ns.cloudflare.com directs to 108.162.192.238, 172.64.32.238 and 173.245.58.238 along with 3 other IP addresses.

Mail Servers

Mail for isma.com is handled by two mail servers — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

isma.com uses an identical mail server configuration to several other domains — among them borstlandscape.com, kennunn.com, hideawayreport.com and two more.

At least some of isma.com's mail servers are shared with other domains, among them www.tupusa.com, tsbdirect.bank, e-hfg.com and mnml.la.

Hostnames that resolve to 6 IP addresses:

Hostname us-smtp-inbound-1.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Hostname us-smtp-inbound-2.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.242 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.242 IP addresses each.