holdfastltd.com - robtex.com

holdfastltd.com

DNSSEC⚠️ Not signed
A103.168.172.37🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRuserweb.fastmail.com
A103.168.172.52🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
NSns1.messagingengine.com ⭐
A162.159.24.178Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.messagingengine.com
NSns2.messagingengine.com
A162.159.25.191Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.messagingengine.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ?all
SOAns1.messagingengine.compostmaster@messagingengine.com 2026-03-24 #0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774924032

Subdomains

mail.holdfastltd.com

Same first word

holdfastltd.com

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSns1.messagingengine.comns2.messagingengine.comns63.domaincontrol.comns64.domaincontrol.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.commailstore1.secureserver.netsmtp.secureserver.netA103.168.172.37103.168.172.52184.168.221.32
●NSns1.messagingengine.com2026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
●NSns2.messagingengine.com2026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
○NSns63.domaincontrol.com2015-06-27 → 2017-03-13 · 4 obs
● 2015-06-27 17:50:20
● 2017-03-13 05:14:46
○ 2020-01-21 21:54:06
○ 2026-03-31 02:55:40
○NSns64.domaincontrol.com2015-06-27 → 2017-03-13 · 4 obs
● 2015-06-27 17:50:20
● 2017-03-13 05:14:46
○ 2020-01-21 21:54:06
○ 2026-03-31 02:55:40
●MXin1-smtp.messagingengine.com2026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
●MXin2-smtp.messagingengine.com2026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
○MXmailstore1.secureserver.net2015-06-27 → 2017-03-13 · 4 obs
● 2015-06-27 17:50:20
● 2017-03-13 05:14:46
○ 2020-01-21 21:54:06
○ 2026-03-31 02:55:40
○MXsmtp.secureserver.net2015-06-27 → 2017-03-13 · 4 obs
● 2015-06-27 17:50:20
● 2017-03-13 05:14:46
○ 2020-01-21 21:54:06
○ 2026-03-31 02:55:40
●A103.168.172.372026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
●A103.168.172.522026-03-28 → 2026-03-31 · 3 obs
○ 2020-01-21 21:54:06
● 2026-03-28 03:27:20
● 2026-03-31 02:55:40
○A184.168.221.322015-06-27 → 2017-03-13 · 4 obs
● 2015-06-27 17:50:20
● 2017-03-13 05:14:46
○ 2020-01-21 21:54:06
○ 2026-03-31 02:55:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
holdfastltd.comns1.messagingengine.com, ns2.messagingengine.com2 records

✅ Authoritative Response

Server:162.159.25.191

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holdfastltd.com (unsigned zone)

⏱️ Timing

Total: 683ms | Queries: -

📄 Records

TypeCountSample Data
A2103.168.172.37, 103.168.172.52
NS2ns1.messagingengine.com, ns2.messagingengine.com
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ?
SOA1ns1.messagingengine.com postmaster.messa

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

holdfastltd.com is the parent of mail.holdfastltd.com.

IP Addresses

holdfastltd.com resolves to two IP numbers: 103.168.172.37 and 103.168.172.52.

other host names including themorrisons.org, awx.spamt.net, ns0.x2a.ch, moranpms.com and ackerson.mm.st share IP numbers with holdfastltd.com.

Name Servers

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

holdfastltd.com shares the same name server setup as other domains, for instance login.farm, thombre.email, sergey.net, hqq.app and tomandreina.us.

holdfastltd.com shares name servers with other domains at least partially, for example animalbouncers.co.uk and denslow.com.au.

Host names with one IP number:

ns1.messagingengine.com points to 162.159.24.178

ns2.messagingengine.com points to 162.159.25.191

Mail Servers

Two mail servers handle holdfastltd.com: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

holdfastltd.com shares the same mail server setup as other domains, for instance iumbic.com, maxmaton.nl, el-studio.net, retvinkel.com and jt.fyi.

holdfastltd.com shares mail servers with other domains to some extent, for instance simonsmail.co.uk.

Host names with eight IPs:

in1-smtp.messagingengine.com points to 103.168.172.216103.168.172.217103.168.172.218103.168.172.219103.168.172.220103.168.172.221103.168.172.222 and 103.168.172.223.

Host names with four IPs:

in2-smtp.messagingengine.com points to 202.12.124.216202.12.124.217202.12.124.218 and 202.12.124.219.