support.startmail.com - dns.ninja

`support.startmail.com`

CNAME	`startmail.zendesk.com`
DNSSEC	⚠️ Not signed
A	216.198.53.6^{🇺🇸 CLOUDFLARESPECTRUM216.198.53.0/24 989 Market St San Francisco CA 94103 United States}
A	216.198.54.6^{🇺🇸 CLOUDFLARESPECTRUM216.198.54.0/24 989 Market St San Francisco CA 94103 United States}
MX	`mail-pod-29.int.zendesk.com` ⭐
		A	34.243.190.250^{🇮🇪 Amazon34.240.0.0/13 EC2 DUB prefix}
			PTR	`ec2-34-243-190-250.eu-west-1.compute.amazonaws.com`
		A	63.34.197.86^{🇮🇪 Amazon63.32.0.0/14 EC2 DUB prefix}
			PTR	`ec2-63-34-197-86.eu-west-1.compute.amazonaws.com`
TXT	`pod=29`
TXT	`v=spf1 include:mail.zendesk.com ~all`

`startmail.com`

	DNSSEC	🔒 Signed (DS record present)
	A	2a02:22a0:bbb6:1d00::1001:443^{🇳🇱 ASN-ROUTIT2a02:22a0::/32 RoutIT B.V.}
	A	2a02:22a0:bbb6:1d00::1002:443^{🇳🇱 ASN-ROUTIT2a02:22a0::/32 RoutIT B.V.}
	A	145.131.90.136^{🇳🇱 ASN-ROUTIT145.131.64.0/18 RoutIT 20160803}
	A	145.131.90.152^{🇳🇱 ASN-ROUTIT145.131.64.0/18 RoutIT 20160803}
	NS	`dns31.cloudns.net` ⭐
	NS	`dns32.cloudns.net`
	NS	`dns33.cloudns.net`
	NS	`dns34.cloudns.net`
	MX	`mx1.startmail.com` ⭐
	MX	`mx2.startmail.com` ⭐
	MX	`mx3.startmail.com`⁽²⁰⁾
	MX	`mx4.startmail.com`⁽³⁰⁾
	TXT	`v=spf1 include:spf.startmail.com include:mail.zendesk.com ~all`
	TXT	`google-site-verification=p92r087LlIf2FNd7HXto_b9YGxOJ7kZgzctnVDneKxI`
	TXT	`google-site-verification=C657dqp16Y0cGcLHCmZHmMsaaIVeprybtgiRi_DukZE`
	SOA	`dns31.cloudns.net`support@cloudns.net 2026-07-07 #4

WOT: SAFE (70/100)
rank #63468 globally
rank #30647 in the tld
🔒 HSTS Preload (+subdomains)
WOT: SAFE (90/100)
📈 Tranco rank: #46,977

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DNS History

1 record (1 active, 0 former)

●CNAMEstartmail.zendesk.com2026-05-07 → 2026-07-18 · 2 obs

● 2026-05-07 16:32:16
● 2026-07-18 16:10:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
startmail.com	dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net, dns34.cloudns.net	-

✅ Authoritative Response

Server:185.136.98.100

NS records: dns31.cloudns.net, dns32.cloudns.net, dns33.cloudns.net, dns34.cloudns.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1050ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`startmail.zendesk.com`

Analysis

IP Addresses

support.startmail.com has two IP addresses: 216.198.53.6 and 216.198.54.6

Additional host names — ppgaccess.zendesk.com, hookandalbert.zendesk.com, bigapplebuddy.zendesk.com and two others — share IP numbers with support.startmail.com.

Mail Servers

support.startmail.com has one mail server: mail-pod-29.int.zendesk.com.

support.startmail.com shares the same mail server setup as other domains, including fastned.zendesk.com, makershophelp.zendesk.com, hpguiden.zendesk.com and two others.

mail-pod-29.int.zendesk.com directs to two IP numbers, 34.243.190.250 and 63.34.197.86.