o2.sgmail.github.com - dns.ninja

`o2.sgmail.github.com`

DNSSEC	⚠️ Not signed
A	192.254.112.60^{🇺🇸 ASN-SENDGRID192.254.112.0/20 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States}
		PTR	`o2.sgmail.github.com`
MX	`mxa.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`

`sgmail.github.com`

	DNSSEC	⚠️ Not signed
	A	167.89.125.30^{🇺🇸 ASN-SENDGRID167.89.124.0/23 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States}
	MX	`mx.sendgrid.net` ⭐
	TXT	`v=spf1 ip4:192.30.252.0/22 include:sendgrid.net ~all`

WOT: SAFE (61/100)
WOT: SAFE (64/100)

PTR for

60.112.254.192.in-addr.arpa

Same first word

o2.tv

o2.net.pl

o2.uk

o2.team

o2.cc

o2.co.za

o2.se

o2.net.kg

o2.ee

o2.fitness

o2.guru

o2.world

o2.cz

o2.edu.vn

o2.ag

o2.fr

o2.co.kr

o2.rs

o2.net.br

o2.dev

o2.art.br

o2.net.ru

o2.ru

o2.co

o2.kiev.ua

o2.si

o2.sg

o2.business

o2.com.mx

o2.ro

o2.no

o2.com.es

o2.de

o2.com.au

o2.lk

o2.kz

o2.com.br

o2.la

o2.support

o2.church

o2.agency

o2.ua

o2.ventures

o2.at

o2.su

o2.io

o2.sk

o2.biz

o2.com

o2.com.tr

o2.nl

o2.bio

o2.by

o2.co.uk

o2.kg

o2.pro

o2.org

o2.com.pl

o2.ca

o2.nu

o2.to

o2.academy

o2.ae

o2.click

o2.lc

o2.events

o2.hu

o2.com.py

o2.pl

o2.ie

o2.net

o2.be

o2.ma

o2.lol

o2.capital

o2.hr

o2.app

o2.com.hk

o2.eu

Similar names

2o.pl

2o.org

2o.cz

2o.be

2o.ca

2o.com

2o.ai

2o.fr

2o.cc

2o.net

2o.at

2o.si

2o.co

2o.cx

2o.de

2o.su

2o.hu

2o.no

2o.nz

2o.cl

2o.nl

2o.dk

2o.hk

2o.se

2o.house

2o.ro

DNS History

3 records (3 active, 0 former)

●MXmxa.mailgun.org2018-10-22 → 2026-07-23 · 2 obs

● 2018-10-22 17:24:36
● 2026-07-23 18:54:26

●MXmxb.mailgun.org2018-10-22 → 2026-07-23 · 2 obs

● 2018-10-22 17:24:36
● 2026-07-23 18:54:26

●A192.254.112.602018-10-22 → 2026-07-23 · 2 obs

● 2018-10-22 17:24:36
● 2026-07-23 18:54:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net...	-
github.com	ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org...	2 records

✅ Authoritative Response

Server:198.51.45.8

NS records: ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org, dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for github.com (unsigned zone)

⏱️ Timing

Total: 1387ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.254.112.60`
MX	2	`mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-421.awsdns-52.com, ns-421.awsdns-52.com)

Analysis

IP Addresses

o2.sgmail.github.com has exactly one IP address — 192.254.112.60.

Mail Servers

o2.sgmail.github.com uses two mail servers, mxa.mailgun.org and mxb.mailgun.org.

The mail server setup of o2.sgmail.github.com matches that of other domains such as beneo.teamwork.com, bgjooon.com, suncrestsg.com and two others.

At least some of the mail servers used by o2.sgmail.github.com are shared with other domains: dagwaarde.nl, pendle.gov.uk, shopwhey.com and two others among them.

It is common to find these mail servers paired with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com, as well as two others.

mxa.mailgun.org and mxb.mailgun.org each point to one IP address — 34.149.254.5.

The host names mxa.mailgun.org and mxb.mailgun.org both resolve to 34.149.254.5 IP addresses.