`smtp.cascadecomputers.net`

CNAME	`mail.smtp2go.com`
DNSSEC	⚠️ Not signed
A	45.33.53.153^{🇺🇸 AKAMAI-LINODE-AP45.33.32.0/19 Akamai Technologies}
		PTR	`mail-in1.smtp2go.com`
A	45.56.87.145^{🇺🇸 AKAMAI-LINODE-AP45.56.80.0/20 Akamai Technologies}
A	45.79.23.175^{🇺🇸 AKAMAI-LINODE-AP45.79.16.0/20}
A	45.79.71.155^{🇺🇸 AKAMAI-LINODE-AP45.79.64.0/19 Akamai Technologies}
A	45.79.114.202^{🇺🇸 AKAMAI-LINODE-AP45.79.112.0/22 Akamai Technologies}
A	45.79.170.99^{🇺🇸 AKAMAI-LINODE-AP45.79.160.0/20 Akamai Technologies}
A	50.116.46.227^{🇺🇸 AKAMAI-LINODE-AP50.116.32.0/20 Akamai Technologies}
A	66.228.43.14^{🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies}
A	69.164.216.166^{🇺🇸 AKAMAI-LINODE-AP69.164.208.0/20 Akamai Technologies}
A	143.42.182.164^{🇺🇸 AKAMAI-LINODE-AP143.42.176.0/20 Akamai Technologies}
A	172.233.143.150^{🇺🇸 AKAMAI-LINODE-AP172.233.128.0/19 Akamai Technologies}
A	172.234.246.155^{🇺🇸 AKAMAI-LINODE-AP172.234.224.0/19 Akamai Technologies}
A	172.234.246.156^{🇺🇸 AKAMAI-LINODE-AP172.234.224.0/19 Akamai Technologies}
A	172.235.50.196^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
A	172.235.57.16^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
A	172.235.57.244^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
A	172.236.115.198^{🇺🇸 AKAMAI-LINODE-AP172.236.96.0/19 Akamai Technologies}
A	173.255.233.87^{🇺🇸 AKAMAI-LINODE-AP173.255.224.0/20 Akamai Technologies}
NS	`ns4.smtpcorp.com` ⭐ ⚠️ Not in parent delegation
		A	45.79.143.133^{🇺🇸 AKAMAI-LINODE-AP45.79.128.0/19 Akamai Technologies}
			PTR	`ns4.smtp2go.com`
NS	`ns2.smtpcorp.com` ⚠️ Not in parent delegation
		A	185.3.94.65^{🇬🇧 AKAMAI-LINODE-AP185.3.92.0/22 Akamai Technologies}
			PTR	`ns2.smtp2go.com`
NS	`sns3.treshna.co.nz` ⚠️ Not in parent delegation
		A	45.79.143.133^{🇺🇸 AKAMAI-LINODE-AP45.79.128.0/19 Akamai Technologies}
			PTR	`ns4.smtp2go.com`
NS	`sns4.treshna.co.nz` ⚠️ Not in parent delegation
		A	198.74.56.28^{🇺🇸 AKAMAI-LINODE-AP198.74.56.0/21 Akamai Technologies}
			PTR	`smtpadmin.smtpcorp.com`
MX	`mail.smtp2go.com` ⭐
		A	45.33.53.153^{🇺🇸 AKAMAI-LINODE-AP45.33.32.0/19 Akamai Technologies}
			PTR	`mail-in1.smtp2go.com`
		A	45.56.87.145^{🇺🇸 AKAMAI-LINODE-AP45.56.80.0/20 Akamai Technologies}
			PTR	`mail-in15.smtp2go.com`
		A	45.79.23.175^{🇺🇸 AKAMAI-LINODE-AP45.79.16.0/20}
			PTR	`balancer-us-03.smtpcorp.com`
		A	45.79.71.155^{🇺🇸 AKAMAI-LINODE-AP45.79.64.0/19 Akamai Technologies}
			PTR	`mail-in5.smtp2go.com`
		A	45.79.114.202^{🇺🇸 AKAMAI-LINODE-AP45.79.112.0/22 Akamai Technologies}
			PTR	`mail-in11.smtp2go.com`
		A	45.79.170.99^{🇺🇸 AKAMAI-LINODE-AP45.79.160.0/20 Akamai Technologies}
			PTR	`mail-in10.smtp2go.com`
		A	50.116.46.227^{🇺🇸 AKAMAI-LINODE-AP50.116.32.0/20 Akamai Technologies}
			PTR	`50-116-46-227.ip.linodeusercontent.com`
		A	66.228.43.14^{🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies}
			PTR	`mail-in2.smtp2go.com`
		A	69.164.216.166^{🇺🇸 AKAMAI-LINODE-AP69.164.208.0/20 Akamai Technologies}
			PTR	`balancer-us-02.smtpcorp.com`
		A	143.42.182.164^{🇺🇸 AKAMAI-LINODE-AP143.42.176.0/20 Akamai Technologies}
			PTR	`mail-in16.smtp2go.com`
		A	172.233.143.150^{🇺🇸 AKAMAI-LINODE-AP172.233.128.0/19 Akamai Technologies}
			PTR	`172-233-143-150.ip.linodeusercontent.com`
		A	172.234.246.155^{🇺🇸 AKAMAI-LINODE-AP172.234.224.0/19 Akamai Technologies}
			PTR	`in21.exim.smtpcorp.com`
		A	172.234.246.156^{🇺🇸 AKAMAI-LINODE-AP172.234.224.0/19 Akamai Technologies}
			PTR	`in23.exim.smtpcorp.com`
		A	172.235.50.196^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
			PTR	`balancer-us-01.smtpcorp.com`
		A	172.235.57.16^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
			PTR	`in20.exim.smtpcorp.com`
		A	172.235.57.244^{🇺🇸 AKAMAI-LINODE-AP172.235.32.0/19 Akamai Technologies}
			PTR	`in19.exim.smtpcorp.com`
		A	172.236.115.198^{🇺🇸 AKAMAI-LINODE-AP172.236.96.0/19 Akamai Technologies}
			PTR	`172-236-115-198.ip.linodeusercontent.com`
		A	173.255.233.87^{🇺🇸 AKAMAI-LINODE-AP173.255.224.0/20 Akamai Technologies}
			PTR	`mail-in6.smtp2go.com`
TXT	`v=spf1 ip4:50.56.72.228 ip4:210.48.71.198/30 ip4:50.57.187.177 include:mail.z...`
TXT	`google-site-verification=soeGlTttTYwUL2pNnJrZhPKlEkv_1ldMmCeoQe1ZkBA`
SOA	`ns4.smtpcorp.com`hostmaster@smtp2go.com serial=2015074711

`cascadecomputers.net`

	DNSSEC	⚠️ Not signed
	A	132.148.178.201^{🇺🇸 AS398101132.148.176.0/21}
	NS	`ns0.dnsmadeeasy.com` ⭐
	NS	`ns1.dnsmadeeasy.com`
	NS	`ns2.dnsmadeeasy.com`
	NS	`ns3.dnsmadeeasy.com`
	NS	`ns4.dnsmadeeasy.com`
	MX	`mx1-us1.ppe-hosted.com` ⭐
	MX	`mx2-us1.ppe-hosted.com`⁽²⁰⁾
	TXT	`v=spf1 mx a:mail.cascadecomputers.com include:spf.smtp2go.com a:dispatch-us.p...`
	SOA	`ns0.dnsmadeeasy.com`dns@dnsmadeeasy.com 2008-01-01 #75

Previously MX for

cascadecomputers.net

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smtp.sp.gov.br

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smtp.net.ua

smtp.hu

smtp.mail.pl

smtp.iki.fi

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smtp.tv

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smtp.radio.fm

smtp.net

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smtp.net.in

smtp.network

smtp.co.il

smtp.si

smtp.software

smtp.com.es

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smtp.sk

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smtp.demo.jelastic.com

smtp.gouv.km

smtp.hotmail

smtp.com.ph

smtp.be

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smtp.ms

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smtp.lt

smtp.fi.cloudplatform.fi

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smtp.to.gov.br

smtp.com.br

smtp.fun

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smtp.gov.ps

smtp.gouv.sn

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smtp.eu.org

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stmp.fr

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mstp.co

smpt.info

tpms.at

mtps.ac.th

spmt.ee

sptm.de

stpm.nl

tpms.org.tw

mstp.com

spmt.be

pstm.de

pmts.ru

tpsm.org

tspm.co.uk

pmts.dyndns.info

stpm.com.au

tpsm.fr

tspm.net

tspm.ch

stpm.com

pmts.nl

mpts.de

tmps.biz

pmst.se

pmts.com.cn

DNS History

2 records (1 active, 1 former)

○A184.61.140.1702015-08-18 → 2026-02-15 · 4 obs

● 2015-08-18 09:57:02
● 2026-02-15 19:27:54
○ 2026-03-24 20:59:22
○ 2026-03-24 20:59:26

●CNAMEmail.smtp2go.com2026-02-15 → 2026-03-24 · 2 obs

● 2026-02-15 19:27:54
● 2026-03-24 20:59:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cascadecomputers.net	ns1.dnsmadeeasy.com, ns4.dnsmadeeasy.com, ns3.dnsmadeeasy.com, ns0.dnsmadeeasy.com...	-

✅ Authoritative Response

Server:208.80.124.2

NS records: ns1.dnsmadeeasy.com, ns4.dnsmadeeasy.com, ns3.dnsmadeeasy.com, ns0.dnsmadeeasy.com, ns2.dnsmadeeasy.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cascadecomputers.net (unsigned zone)

⏱️ Timing

Total: 153ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mail.smtp2go.com`

Analysis

IP Addresses

smtp.cascadecomputers.net points to eighteen IP numbers: 45.33.53.153, 45.56.87.145, 45.79.23.175, 45.79.71.155, 45.79.114.202, 45.79.170.99, 50.116.46.227, 66.228.43.14, 69.164.216.166, 143.42.182.164, 172.233.143.150, 172.234.246.155, 172.234.246.156, 172.235.50.196, 172.235.57.16, 172.235.57.244, 172.236.115.198 and 173.255.233.87.

other host names including in20.exim.smtpcorp.com, mail-in5.smtp2go.com, mail-in10.smtp2go.com, mail-in16.smtp2go.com and 45-56-87-145.ip.linodeusercontent.com share IP numbers with smtp.cascadecomputers.net.

Name Servers

smtp.cascadecomputers.net is delegated to four name servers: ns2.smtpcorp.com, ns4.smtpcorp.com, sns3.treshna.co.nz and sns4.treshna.co.nz.

smtp.cascadecomputers.net at least partially shares name servers with other domains, for instance app.smtp2go.com, 143.2.103.in-addr.arpa, olt.smtphost.com, 140.2.103.in-addr.arpa and 120.235.66.in-addr.arpa.

These name servers are commonly used alongside ns1.smtpcorp.com, sns1.treshna.co.nz, sns2.treshna.co.nz, ns1.smtp2go.com, ns2.smtp2go.com and ns4.smtp2go.com.

Host names with a single IP:

ns2.smtpcorp.com points to 185.3.94.65

ns4.smtpcorp.com points to 45.79.143.133

sns3.treshna.co.nz points to 45.79.143.133

sns4.treshna.co.nz points to 198.74.56.28

Host names pointing to 45.79.143.133: ns4.smtpcorp.com and sns3.treshna.co.nz

Mail Servers

smtp.cascadecomputers.net is handled by a single mail server, mail.smtp2go.com.

smtp.cascadecomputers.net shares the same mail server setup as other domains, for instance smtpcorp.com, sds-nordovest.fi.it, bellinghampubliclibrary.org, mikrosweb.com and nmgi.info.

smtp.cascadecomputers.net shares some mail servers with other domains, at least partially, for instance allenpress.net, chrisross.cc, hex.ge, myiteam.com and ata.house.

these mail servers are commonly used with the mail servers allenpress-net.mail.protection.outlook.com.

Host mail.smtp2go.com points to eighteen IP numbers: 45.33.53.153, 45.56.87.145, 45.79.23.175, 45.79.71.155, 45.79.114.202, 45.79.170.99, 50.116.46.227, 66.228.43.14, 69.164.216.166, 143.42.182.164, 172.233.143.150, 172.234.246.155, 172.234.246.156, 172.235.50.196, 172.235.57.16, 172.235.57.244, 172.236.115.198 and 173.255.233.87.

smtp.cascadecomputers.net - robtex.com