`postmarksmtp.com`

DNSSEC	⚠️ Not signed
NS	`aiden.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b37^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c137^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aiden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2137^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aiden.ns.cloudflare.com`
		A	108.162.193.55^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	172.64.33.55^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	173.245.59.55^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
NS	`elinore.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a99^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c099^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elinore.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2099^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elinore.ns.cloudflare.com`
		A	108.162.192.153^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	172.64.32.153^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	173.245.58.153^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
SOA	`aiden.ns.cloudflare.com`dns@cloudflare.com serial=2396949165

`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=1774535142

⚠️ On DNS blocklist: tif

Previously MX for

postmarksmtp.com

Same first word

postmarksmtp.com

DNS History

6 records (2 active, 4 former)

●NSaiden.ns.cloudflare.com2026-03-11 → 2026-03-26 · 3 obs

○ 2017-10-04 09:14:52
● 2026-03-11 03:42:20
● 2026-03-26 14:36:10

○NSdns1.laisvas.lt2016-12-21 → 2017-10-04 · 4 obs

● 2016-12-21 00:00:26
● 2017-10-04 09:14:52
○ 2026-03-11 03:42:20
○ 2026-03-26 14:36:10

○NSdns2.bacloud.com2016-12-21 → 2017-10-04 · 4 obs

● 2016-12-21 00:00:26
● 2017-10-04 09:14:52
○ 2026-03-11 03:42:20
○ 2026-03-26 14:36:10

●NSelinore.ns.cloudflare.com2026-03-11 → 2026-03-26 · 3 obs

○ 2017-10-04 09:14:52
● 2026-03-11 03:42:20
● 2026-03-26 14:36:10

○MXpostmarksmtp.com2016-12-21 → 2017-10-04 · 4 obs

● 2016-12-21 00:00:26
● 2017-10-04 09:14:52
○ 2026-03-11 03:42:20
○ 2026-03-26 14:36:10

○A185.25.51.1202016-12-21 → 2017-10-04 · 4 obs

● 2016-12-21 00:00:26
● 2017-10-04 09:14:52
○ 2026-03-11 03:42:20
○ 2026-03-26 14:36:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
postmarksmtp.com	elinore.ns.cloudflare.com, aiden.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.55

NS records: elinore.ns.cloudflare.com, aiden.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postmarksmtp.com (unsigned zone)

⏱️ Timing

Total: 115ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`aiden.ns.cloudflare.com, elinore.ns.cloudflare.com`
SOA	1	`aiden.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

Two name servers aiden.ns.cloudflare.com and elinore.ns.cloudflare.com handle the delegation for postmarksmtp.com.

postmarksmtp.com shares the same name server setup as other domains, for example jj-gc.de, sirgipert-usderk.com, sevenseasauto.com, dotir.net and slidenest.com.

postmarksmtp.com at least partially shares name servers with other domains, for example davidchristopher.co.uk, premierlotteriesireland.com, batteriesplusfranchise.com, iudpas.org and hockey-news.info.

These name servers are often used together with zoe.ns.cloudflare.com and julio.ns.cloudflare.com.

Host names with six IP numbers:

aiden.ns.cloudflare.com points to 2606:4700:58::adf5:3b37, 2803:f800:50::6ca2:c137, 2a06:98c1:50::ac40:2137, 108.162.193.55, 172.64.33.55 and 173.245.59.55.

elinore.ns.cloudflare.com points to 2606:4700:50::adf5:3a99, 2803:f800:50::6ca2:c099, 2a06:98c1:50::ac40:2099, 108.162.192.153, 172.64.32.153 and 173.245.58.153.

postmarksmtp.com - robtex.com