`a4fax.com`

DNSSEC	⚠️ Not signed
A	103.168.172.37^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
		PTR	`www.messagingengine.com`
A	103.168.172.52^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
NS	`ns1.messagingengine.com` ⭐
		A	162.159.24.178^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.messagingengine.com`
NS	`ns2.messagingengine.com`
		A	162.159.25.191^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.messagingengine.com`
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`
TXT	`v=spf1 include:spf.messagingengine.com ?all`
SOA	`ns1.messagingengine.com`postmaster@messagingengine.com 2026-04-03 #0

`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=1777018271

Same first word

a4fax.com

DNS History

11 records (6 active, 5 former)

○NSns1.dnsowl.com2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 15:18:34
○ 2026-02-22 06:58:12
○ 2026-04-24 08:14:26

●NSns1.messagingengine.com2026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

○NSns2.dnsowl.com2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 15:18:34
○ 2026-02-22 06:58:12
○ 2026-04-24 08:14:26

●NSns2.messagingengine.com2026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

○NSns3.dnsowl.com2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 15:18:34
○ 2026-02-22 06:58:12
○ 2026-04-24 08:14:26

○MXelnath.uberspace.de2017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 15:18:34
○ 2026-02-22 06:58:12
○ 2026-04-24 08:14:26

●MXin1-smtp.messagingengine.com2026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

●MXin2-smtp.messagingengine.com2026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

●A103.168.172.372026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

●A103.168.172.522026-02-22 → 2026-04-24 · 3 obs

○ 2017-05-11 15:18:34
● 2026-02-22 06:58:12
● 2026-04-24 08:14:26

○A185.26.156.422017-05-11 → 2017-05-11 · 3 obs

● 2017-05-11 15:18:34
○ 2026-02-22 06:58:12
○ 2026-04-24 08:14:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net...	-
a4fax.com	ns1.messagingengine.com, ns2.messagingengine.com	2 records

✅ Authoritative Response

Server:162.159.24.178

NS records: ns1.messagingengine.com, ns2.messagingengine.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a4fax.com (unsigned zone)

⏱️ Timing

Total: 376ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`103.168.172.37, 103.168.172.52`
NS	2	`ns1.messagingengine.com, ns2.messagingengine.com`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	1	`v=spf1 include:spf.messagingengine.com ?`
SOA	1	`ns1.messagingengine.com postmaster.messa`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.messagingengine.com, ns2.messagingengine.com)

Analysis

IP Addresses

a4fax.com points to two IP numbers: 103.168.172.37 and 103.168.172.52.

Other host names such as cwb-hk.com, writ.co, upbox.net, mark-denton.com and www.hostoffice.com share IPs with a4fax.com.

Name Servers

a4fax.com is delegated to two name servers: ns1.messagingengine.com and ns2.messagingengine.com.

a4fax.com shares the same name server setup as usaebox.com, johnkitchen.net, rabassa.net, maintackle.com and heritagetennis.com.

a4fax.com shares name servers with other domains at least partially, for instance russellupevents.co.uk and boomingbouncers.com.

These name servers are commonly used with ns1.bouncycastlenetwork.co.uk and ns2.bouncycastlenetwork.co.uk.

Host names with a single IP:

ns1.messagingengine.com points to 162.159.24.178.

ns2.messagingengine.com points to 162.159.25.191.

Mail Servers

a4fax.com is handled by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

The mail server setup for a4fax.com matches that of other domains, for instance mostlyinvisible.com, ghst.ws, kimberlyoneill.com, phrygian.netmusician.org and mail.neofob.com.

a4fax.com shares some mail servers with other domains, at least in part, for instance y2u.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.

a4fax.com - robtex.com

a4fax.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`a4fax.com`

`com`