`mail.4of.de`

DNSSEC	⚠️ Not signed
A	103.168.172.65^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
		PTR	`mail.fastmail.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`

`4of.de`

	DNSSEC	⚠️ Not signed
	A	81.169.241.18^{🇩🇪 STRATO81.169.128.0/17 AG}
	NS	`ns1.messagingengine.com` ⭐
	NS	`ns2.messagingengine.com`
	MX	`in1-smtp.messagingengine.com` ⭐
	MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
	TXT	`v=spf1 include:spf.messagingengine.com ?all`
	SOA	`ns1.messagingengine.com`postmaster@messagingengine.com 2026-03-03 #0

Same first word

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DNS History

5 records (3 active, 2 former)

●MXin1-smtp.messagingengine.com2019-11-23 → 2026-03-26 · 2 obs

● 2019-11-23 15:31:40
● 2026-03-26 04:14:42

●MXin2-smtp.messagingengine.com2019-11-23 → 2026-03-26 · 2 obs

● 2019-11-23 15:31:40
● 2026-03-26 04:14:42

●A103.168.172.652026-03-26 → 2026-03-26 · 2 obs

○ 2020-06-21 00:49:44
● 2026-03-26 04:14:42

○A81.169.241.182019-11-23 → 2020-06-21 · 4 obs

○ 2016-04-12 05:24:32
● 2019-11-23 15:31:40
● 2020-06-21 00:49:44
○ 2026-03-26 04:14:42

○A85.214.147.82015-06-28 → 2016-04-12 · 4 obs

● 2015-06-28 16:09:48
● 2016-04-12 05:24:32
○ 2019-11-23 15:31:40
○ 2026-03-26 04:14:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
4of.de	ns1.messagingengine.com, ns2.messagingengine.com	-

✅ Authoritative Response

Server:162.159.25.191

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4of.de (unsigned zone)

⏱️ Timing

Total: 886ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.168.172.65`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`

Analysis

IP Addresses

mail.4of.de points to a single IP address: 103.168.172.65.

Other host names such as www.mailas.com, mail.thewoodartiststudio.com, mail.goflores.com, mail.ssault.com and mail.gerrykhoo.com share IPs with mail.4of.de.

Mail Servers

Two mail servers handle mail.4of.de: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

mail.4of.de shares the same mail server setup as other domains, including andrew-jones.com, upx.dk, laria.me, absurdism.org and mail.uqme.com.

mail.4of.de shares some mail servers with other domains, for example navmicon.com.

Eight IP numbers for host names:

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 for host names:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and undefined.

mail.4of.de - robtex.com

mail.4of.de

4of.de