`mail.4sw.org`

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

`4sw.org`

	DNSSEC	⚠️ Not signed
	A	103.168.172.37^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
	A	103.168.172.52^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
	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 2026-04-13 #0

Previously MX for

4sw.org

Same first word

mail.mk

mail.club

mail.news

mail.daa.jp

mail.sd

mail.co.id

mail.top

mail.health-carereform.com

mail.iki.fi

mail.limited

mail.man

mail.gen.tr

mail.zip

mail.dvrcam.info

mail.gov.gd

mail.brasilia.me

mail.hopto.me

mail.pn

mail.panel.dev

mail.gov.il

mail.ie

mail.co.cr

mail.pa

mail.schaeffler

mail.gov.to

mail.berlin

mail.dynns.com

mail.go.id

mail.tl

mail.rec.br

mail.com.ps

mail.(0x6c6f6c697461)punk.jp

mail.sc

mail.gov.ie

mail.company

mail.gov.mn

mail.priv.pl

mail.mw

mail.gov.na

mail.co.nz

mail.sdscloud.pl

mail.az

mail.is

mail.id

mail.tr

mail.tt

mail.media

mail.vinnica.ua

mail.readymade.jp

mail.raindrop.jp

mail.tj

mail.mydissent.net

mail.spdns.org

mail.lk

mail.fish

mail.pp.ua

mail.fun

mail.no-ip.net

mail.mn

mail.mydns.bz

mail.fem.jp

mail.health

mail.s3.amazonaws.com

mail.gov.ye

mail.com.kg

mail.nra

mail.couchpotatofries.org

mail.radio.fm

mail.od.ua

mail.ms

mail.boleslawiec.pl

mail.mydns.vc

mail.lutsk.ua

mail.kz

mail.im

mail.kaas.gg

mail.it.com

mail.gov.mg

mail.ss

mail.co

mail.tc

mail.gda.pl

mail.world

mail.pe

mail.sunnyday.jp

mail.group

mail.gov

mail.org.za

mail.mx

mail.cy

mail.gov.ae

mail.com.ba

mail.co.zw

mail.org

mail.pixolino.com

mail.ug

mail.ly

mail.gs

mail.bg

mail.wtf

Similar names

mail.travel

mail.td

mail.nr

mila.network

mail.nrw

mail.xyz

lima.gov.py

mlai.org

mail.loginto.me

laim.co.jp

imal.com.au

mial.se

mail.bio

mila.org

mail.dk

mail.main.jp

mail.graphics

liam.energy

mali.pl

amil.fr

mlai.com

mila.agency

mila.host

imla.in

aiml.eu

mali.ca

mail.lc

mail.city

lami.ca

mail.yt

lima.ie

mail.watch

mali.kz

amil.feedback

mail.lomo.jp

mila.com.uy

mail.lu

lima.com.br

lima.ag

mail.tel

imla.net

almi.gr

mail.ws

mlai.cn

mail.holiday

mail.zombie.jp

lima.taxi

mail.ma

mail.mr

mail.gov.af

mail.hashbang.sh

mail.mil.ru

mail.schwarz

mail.co.uk

alim.be

mail.rj.gov.br

aiml.net

mail.freedesktop.org

liam.id.vn

mail.direct

laim.ee

almi.tv

mail.yandex

mail.sh.cn

mial.pl

mail.vacations

lima.today

mail.my

ialm.ru

mila.com.tr

almi.co

alim.org

mail.gov.mz

aiml.ru

mail.gov.ph

mila.ru

alim.eu

mail.veterinaire.fr

lima.pt

mail.ee

mail.yokohama

mail.mu

mail.nflfan.org

mail.bayern

mail.dnsalias.com

mail.com.tr

mail.ai

lami.ro

almi.com

mail.my.id

alim.ee

mila.fm

lima.us

mail.org.ru

mali.ch

mali.co

liam.net

mail.re

aiml.us

mila.net

DNS History

9 records (3 active, 6 former)

○NSns1.4sw.org2015-07-07 → 2016-11-09 · 3 obs

● 2015-07-07 17:32:56
● 2016-11-09 14:23:32
○ 2026-05-09 23:22:14

○NSns1.mail.4sw.org2015-07-07 → 2016-11-09 · 3 obs

● 2015-07-07 17:32:56
● 2016-11-09 14:23:32
○ 2026-05-09 23:22:14

○NSns2.4sw.org2015-07-07 → 2016-11-09 · 3 obs

● 2015-07-07 17:32:56
● 2016-11-09 14:23:32
○ 2026-05-09 23:22:14

●MXin1-smtp.messagingengine.com2026-05-09 → 2026-05-09 · 2 obs

○ 2016-11-09 14:23:32
● 2026-05-09 23:22:14

●MXin2-smtp.messagingengine.com2026-05-09 → 2026-05-09 · 2 obs

○ 2016-11-09 14:23:32
● 2026-05-09 23:22:14

○MXmail.mail.4sw.org2015-07-07 → 2016-11-09 · 3 obs

● 2015-07-07 17:32:56
● 2016-11-09 14:23:32
○ 2026-05-09 23:22:14

●A103.168.172.652026-05-09 → 2026-05-09 · 2 obs

○ 2016-11-09 14:23:32
● 2026-05-09 23:22:14

○A72.52.81.1242015-07-07 → 2016-11-09 · 3 obs

● 2015-07-07 17:32:56
● 2016-11-09 14:23:32
○ 2026-05-09 23:22:14

○A72.52.81.312015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 17:32:56
○ 2015-11-20 18:48:02
○ 2026-05-09 23:22:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
4sw.org	ns2.messagingengine.com, ns1.messagingengine.com	-

✅ Authoritative Response

Server:162.159.24.178

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4sw.org (unsigned zone)

⏱️ Timing

Total: 351ms | 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.4sw.org points to a single IP address: 103.168.172.65.

Other host names such as mail.kst.com, mail.brevid.net, tm20.com, mail.fastmail.ca and your-mail.com share IPs with mail.4sw.org.

Mail Servers

Two mail servers handle mail.4sw.org: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

mail.4sw.org shares the same mail server setup as other domains, including flashrat.co.uk, wi.zone, szed.co, bobswinkels.com and davisgoods.com.

mail.4sw.org shares at least partially some mail servers with other domains, for instance goodridge.net.au, 8897888978.com, cdrhgas.cn, gamrot.net and mobimic.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.4sw.org - robtex.com

mail.4sw.org

4sw.org

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Mail Servers

`mail.4sw.org`

`4sw.org`