mail.nexstack.sg - dns.ninja

mail.nexstack.sg

DNSSEC⚠️ Not signed
A103.7.9.136🇸🇬 EXABYTES-AS-AP103.7.8.0/22 Exabytes Network (Singapore) Pte. Ltd. 140 Paya Lebar 08-02 AZ Paya Lebar
PTRnp133.sgcloudhosting.cloud
MXmxa.onesignal.email ⭐
A34.149.254.5🇺🇸 Google34.148.0.0/14
PTR5.254.149.34.bc.googleusercontent.com
MXmxb.onesignal.email ⭐
A34.36.182.139🇺🇸 Google34.32.0.0/11
PTR139.182.36.34.bc.googleusercontent.com
TXTv=spf1 include:spf.onesignal.email include:mailgun.org ~all

nexstack.sg

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:600b🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:abf2🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.96.11Cloudflare104.21.96.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.171.242🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmarjory.ns.cloudflare.com ⭐
NSstan.ns.cloudflare.com
MXmail.nexstack.sg ⭐
MXmxa.mailgun.org(10)
MXmxb.mailgun.org(10)
TXTgoogle-site-verification=PjLIHCKLKajoTLXN2lR4CKdlXLXgb2Mn-Gpvteso1O8
TXTv=spf1 ip4:103.7.9.136 a:mail.nexstack.sg mx -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.96.11, 172.67.171.242
IPv6 hints2606:4700:3035::6815:600b, 2606:4700:3037::ac43:abf2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOAmarjory.ns.cloudflare.comdns@cloudflare.com serial=2411472887

MX for

nexstack.sg

Same first word

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DNS History

3 records (3 active, 0 former)

MXmxa.onesignal.emailmxb.onesignal.emailA103.7.9.136
●MXmxa.onesignal.email2026-06-16 → 2026-08-09 · 2 obs
● 2026-06-16 10:35:38
● 2026-08-09 06:46:10
●MXmxb.onesignal.email2026-06-16 → 2026-08-09 · 2 obs
● 2026-06-16 10:35:38
● 2026-08-09 06:46:10
●A103.7.9.1362026-06-16 → 2026-08-09 · 2 obs
● 2026-06-16 10:35:38
● 2026-08-09 06:46:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sgns4.apnic.net, pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...10 records
nexstack.sgmarjory.ns.cloudflare.com, stan.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.235

NS records: marjory.ns.cloudflare.com, stan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nexstack.sg (unsigned zone)

⏱️ Timing

Total: 420ms | Queries: -

📄 Records

TypeCountSample Data
A1103.7.9.136
MX2mxa.onesignal.email (pri: 10), mxb.onesignal.email (pri: 10)
TXT1v=spf1 include:spf.onesignal.email inclu

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (pch.sgzones.sg, pch.sgzones.sg, dsany2.sgnic.sg...)

Out-of-bailiwick: 2 (ns4.apnic.net, ns4.apnic.net)

Analysis

Mail Server Role

Mail for nexstack.sg is routed through the mail server mail.nexstack.sg.

mxa.mailgun.org and mxb.mailgun.org tend to appear as mail servers in combination with mail.nexstack.sg.

IP Addresses

mail.nexstack.sg has exactly one IP address — 103.7.9.136.

spize.com.sg, limkee.com, mail.e-star.com.sg plus two other host names have IP numbers in common with mail.nexstack.sg.

Mail Servers

mail.nexstack.sg uses two mail servers, mxa.onesignal.email and mxb.onesignal.email.

The mail server setup of mail.nexstack.sg matches that of other domains such as mail.locarx.com.br, mail.bagino.sk, mail.e-manthus.com and two others.

At least some of the mail servers used by mail.nexstack.sg are shared with other domains: smartist.app, doujinblog.org, mail.mzansivoice.co.za and two others among them.

These mail servers are often deployed together with smtp.google.com, aspmx.l.google.com, alt1.aspmx.l.google.com and 5 other mail servers.

mxa.onesignal.email → 34.149.254.5 and mxb.onesignal.email → 34.36.182.139: one IP number per host name.