`mailoptimizer.com`

DNSSEC	⚠️ Not signed
A	4.245.24.235^{🇳🇱 Microsoft4.240.0.0/12 MICROSOFT}
NS	`ns.deutschepost.de` ⭐
		A	149.239.160.100^{🇩🇪 DPAG-AS149.239.128.0/17 POST-149-239-128-0-17}
			PTR	`ns.deutschepost.de`
NS	`ns01.brandshelter.com`
		A	2a04:2b00:14cc::15^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`ns15.i.centralnic-dns.com`
		A	193.227.117.15^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
NS	`ns02.brandshelter.net`
		A	2a04:2b00:14dd::16^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns16.j.centralnic-dns.com`
		A	194.50.187.16^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
NS	`ppd00021.deutschepost.de`
		A	149.239.160.240^{🇩🇪 DPAG-AS149.239.128.0/17 POST-149-239-128-0-17}
			PTR	`ppd00021.deutschepost.de`
TXT	`v=spf1 -all`
SOA	`ns.deutschepost.de`postmaster@deutschepost.de 2025-06-05 #4

`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=1785504917

Same first word

mailoptimizer.de

mailoptimizer.com

DNS History

11 records (5 active, 6 former)

●NSns.deutschepost.de2015-05-12 → 2026-07-31 · 2 obs

● 2015-05-12 15:28:26
● 2026-07-31 13:39:24

●NSns01.brandshelter.com2026-07-19 → 2026-07-31 · 3 obs

○ 2017-08-09 01:06:26
● 2026-07-19 13:58:06
● 2026-07-31 13:39:24

●NSns02.brandshelter.net2026-07-19 → 2026-07-31 · 3 obs

○ 2017-08-09 01:06:26
● 2026-07-19 13:58:06
● 2026-07-31 13:39:24

○NSns1.deutschepost.de2016-12-04 → 2017-08-09 · 5 obs

○ 2016-04-12 21:20:34
● 2016-12-04 00:15:30
● 2017-08-09 01:06:26
○ 2026-07-19 13:58:06
○ 2026-07-31 13:39:24

○NSns1.markmonitor.com2015-05-12 → 2016-04-12 · 4 obs

● 2015-05-12 15:28:26
● 2016-04-12 21:20:34
○ 2016-12-04 00:15:30
○ 2026-07-31 13:39:24

○NSns2.deutschepost.de2016-12-04 → 2017-08-09 · 5 obs

○ 2016-04-12 21:20:34
● 2016-12-04 00:15:30
● 2017-08-09 01:06:26
○ 2026-07-19 13:58:06
○ 2026-07-31 13:39:24

○NSns3.deutschepost.de2016-12-04 → 2017-08-09 · 5 obs

○ 2016-04-12 21:20:34
● 2016-12-04 00:15:30
● 2017-08-09 01:06:26
○ 2026-07-19 13:58:06
○ 2026-07-31 13:39:24

○NSns3.markmonitor.com2015-05-12 → 2016-04-12 · 4 obs

● 2015-05-12 15:28:26
● 2016-04-12 21:20:34
○ 2016-12-04 00:15:30
○ 2026-07-31 13:39:24

○NSns5.markmonitor.com2015-05-12 → 2016-04-12 · 4 obs

● 2015-05-12 15:28:26
● 2016-04-12 21:20:34
○ 2016-12-04 00:15:30
○ 2026-07-31 13:39:24

●NSppd00021.deutschepost.de2015-05-12 → 2026-07-31 · 2 obs

● 2015-05-12 15:28:26
● 2026-07-31 13:39:24

●A4.245.24.2352026-07-19 → 2026-07-31 · 2 obs

● 2026-07-19 13:58:06
● 2026-07-31 13:39:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
mailoptimizer.com	ns.deutschepost.de, ppd00021.deutschepost.de, ns01.brandshelter.com, ns02.brandshelter.net	2 records

✅ Authoritative Response

Server:149.239.160.240

NS records: ns.deutschepost.de, ppd00021.deutschepost.de, ns01.brandshelter.com, ns02.brandshelter.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mailoptimizer.com (unsigned zone)

⏱️ Timing

Total: 701ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`4.245.24.235`
NS	4	`ppd00021.deutschepost.de, ns02.brandshelter.net...`
TXT	1	`v=spf1 -all`
SOA	1	`ns.deutschepost.de postmaster.deutschepo`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns01.brandshelter.com, ns01.brandshelter.com)

Analysis

IP Addresses

mailoptimizer.com resolves to one IP address: 4.245.24.235.

www.epost.net, dp-printcom.eu, clever-post.org and two other host names share IP numbers with mailoptimizer.com.

Name Servers

The authoritative name servers for mailoptimizer.com are ns01.brandshelter.com, ns.deutschepost.de, ppd00021.deutschepost.de and ns02.brandshelter.net.

At least some of mailoptimizer.com's name servers are shared with other domains, for example postiminternet.at, deutschepost.shop, post-online.de and two more.

Hostnames that resolve to two IP addresses:

ns01.brandshelter.com resolves to two addresses: 193.227.117.15 and 2a04:2b00:14cc::15.

ns02.brandshelter.net resolves to two addresses: 194.50.187.16 and 2a04:2b00:14dd::16.

Hosts with just one IP address:

The hostname ns.deutschepost.de resolves to 149.239.160.100.

The hostname ppd00021.deutschepost.de resolves to 149.239.160.240.

mailoptimizer.com - robtex.com