`s4.dekuiper.com`

DNSSEC	⚠️ Not signed
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`

`dekuiper.com`

	DNSSEC	🔒 Signed (DS record present)
	A	66.111.4.53
	NS	`bob.ns.cloudflare.com` ⭐
	NS	`robin.ns.cloudflare.com`
	MX	`in1-smtp.messagingengine.com` ⭐
	MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
	TXT	`google-site-verification=STE4MKFH5IY4Zmr4y0yZNBIbpX991H0rbRiY3A8y9Uw`
	TXT	`v=spf1 include:spf.messagingengine.com ?all`
	SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2403718461

PTR for

28.114.21.178.in-addr.arpa

Same first word

s4.by

s4.com.ua

s4.de

s4.is

s4.be

s4.sp.gov.br

s4.ro

s4.co.uk

s4.world

s4.eng.br

s4.cn

s4.solutions

s4.ddns.net

s4.hu

s4.dev

s4.pl

s4.ru

s4.ag

s4.community

s4.com.br

s4.io

s4.dk

s4.cl

s4.no

s4.eu

s4.agency

s4.ca

s4.network

s4.com

s4.kz

s4.fr

s4.cz

Similar names

4s.game

4s.com.pl

4s.ae

4s.fi

4s.lt

4s.com.tr

4s.no

4s.nu

4s.hu

4s.tv

4s.biz

4s.pl

4s.si

4s.cx

4s.dk

4s.fr

4s.pl.ua

4s.cl

4s.org

4s.org.sg

4s.eu

4s.be

4s.io

4s.cc

4s.com.br

4s.wiki

4s.lv

4s.world

4s.link

4s.by

4s.cz

4s.su

4s.ca

4s.sk

4s.cn

4s.hk

4s.com

DNS History

2 records (2 active, 0 former)

●MXin1-smtp.messagingengine.com2026-03-27 → 2026-05-13 · 2 obs

● 2026-03-27 03:34:48
● 2026-05-13 01:29:30

●MXin2-smtp.messagingengine.com2026-03-27 → 2026-05-13 · 2 obs

● 2026-03-27 03:34:48
● 2026-05-13 01:29:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
dekuiper.com	bob.ns.cloudflare.com, robin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.218

NS records: bob.ns.cloudflare.com, robin.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 779ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Servers

s4.dekuiper.com is handled by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

The mail server setup for s4.dekuiper.com matches that of other domains, for instance digitalvisions.com, pixeye.fr, amilabs.cc, readpaperback.com and mx0.lindstein.org.

Eight IP numbers per host name: in1-smtp.messagingengine.com points to 103.168.172.216, 103.168.172.217, 103.168.172.218, 103.168.172.219, 103.168.172.220, 103.168.172.221, 103.168.172.222 and 103.168.172.223.

Four IP numbers per host name: in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.

s4.dekuiper.com - robtex.com

s4.dekuiper.com

dekuiper.com