`spamcheck.postmarkapp.com`

CNAME	`ingress-proxy-marketing-us-east-2.postmarkapp.com`
DNSSEC	⚠️ Not signed
A	3.23.15.220^{🇺🇸 Amazon3.20.0.0/14 EC2 CMH prefix}
		PTR	`ec2-3-23-15-220.us-east-2.compute.amazonaws.com`
A	3.140.164.179^{🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix}
A	3.142.191.239^{🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix}

`postmarkapp.com`

	DNSSEC	⚠️ Not signed
	A	94.247.142.1^{🇺🇸 CLOUDFLARESPECTRUM94.247.142.0/24}
	NS	`ns-1262.awsdns-29.org` ⭐
	NS	`ns-1657.awsdns-15.co.uk`
	NS	`ns-229.awsdns-28.com`
	NS	`ns-721.awsdns-26.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
	MX	`aspmx2.googlemail.com`⁽³⁰⁾
	MX	`aspmx3.googlemail.com`⁽³⁰⁾
	TXT	`01a65dddcd764010b6df567c88b8fb7d`
	TXT	`abuseipdb-verification=QzehCZYK`
	TXT	`digicert: 00577009 nagele@wildbit.com`
	TXT	`google-site-verification=Bd-0GuslXF2wO_SnN_1pHncqvPZAuCOZxlGaly-V8zI`
	TXT	`google-site-verification=CFwYqNoJsUkztxVzMjK8u1m0_BaklRvOZb5aecNTk8o`
	TXT	`google-site-verification=aRqd5oLuMuPX2-qGutbokgWlmw76Gr68-v_Ryr0Pha8`
	TXT	`v=spf1 a mx include:spf.mtasv.net include:_spf.google.com include:cmail1.com ...`
	SOA	`ns-1262.awsdns-29.org`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (64/100)
rank #19274 globally
rank #9505 in the tld
WOT: SAFE (82/100)
📈 Tranco rank: #23,387

Same first word

spamcheck.co

spamcheck.ru

spamcheck.toolforge.org

spamcheck.eu

spamcheck.it

spamcheck.jp

spamcheck.ie

spamcheck.net

spamcheck.com

spamcheck.at

spamcheck.online

spamcheck.org

spamcheck.dk

spamcheck.in

Similar names

chempacks.com

checkspam.net

checkspam.com

checkspam.de

checkmaps.com

DNS History

8 records (1 active, 7 former)

○A23.21.115.662015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 11:50:16
○ 2026-03-23 05:48:26
○ 2026-05-09 20:45:58

○A50.16.219.2552016-04-23 → 2016-04-23 · 4 obs

○ 2016-02-03 09:40:22
● 2016-04-23 00:34:54
○ 2026-03-23 05:48:26
○ 2026-05-09 20:45:58

○A54.225.166.1712015-11-09 → 2016-02-03 · 5 obs

○ 2015-07-05 11:50:16
● 2015-11-09 11:53:06
● 2016-02-03 09:40:22
○ 2016-04-23 00:34:54
○ 2026-05-09 20:45:58

○A54.225.181.802015-11-09 → 2016-02-03 · 5 obs

○ 2015-07-05 11:50:16
● 2015-11-09 11:53:06
● 2016-02-03 09:40:22
○ 2016-04-23 00:34:54
○ 2026-05-09 20:45:58

○A54.235.104.172016-04-23 → 2016-04-23 · 4 obs

○ 2016-02-03 09:40:22
● 2016-04-23 00:34:54
○ 2026-03-23 05:48:26
○ 2026-05-09 20:45:58

○A54.235.140.1022015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 11:50:16
○ 2026-03-23 05:48:26
○ 2026-05-09 20:45:58

●CNAMEingress-proxy-marketing-us-east-2.postmarkapp.com2026-03-23 → 2026-05-09 · 3 obs

○ 2016-04-23 00:34:54
● 2026-03-23 05:48:26
● 2026-05-09 20:45:58

○CNAMEspamcheck-1558836525.us-east-1.elb.amazonaws.com2015-07-05 → 2016-04-23 · 4 obs

● 2015-07-05 11:50:16
● 2016-04-23 00:34:54
○ 2026-03-23 05:48:26
○ 2026-05-09 20:45:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
postmarkapp.com	ns-229.awsdns-28.com, ns-721.awsdns-26.net, ns-1657.awsdns-15.co.uk, ns-1262.awsdns-29.org	2 records
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-
postmarkapp.com	ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net	-

✅ Authoritative Response

Server:205.251.194.209

NS records: ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk, ns-229.awsdns-28.com, ns-721.awsdns-26.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postmarkapp.com (unsigned zone)

⏱️ Timing

Total: 518ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ingress-proxy-marketing-us-east-2.postma`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-229.awsdns-28.com, ns-229.awsdns-28.com)

Analysis

IP Addresses

spamcheck.postmarkapp.com resolves to three IP numbers: 3.23.15.220, 3.140.164.179 and 3.142.191.239.

Other host names, for instance www.mtasv.net, ingress-proxy-marketing-us-east-2.postmarkapp.com, pstmrk.it, ab.mtasv.net and mtasv.net share IP numbers with spamcheck.postmarkapp.com.

spamcheck.postmarkapp.com - robtex.com