o8.sgmail.github.com - robtex.com
o8.sgmail.github.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 167.89.101.199🇺🇸 ASN-SENDGRID167.89.96.0/20 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States | ||||||
| PTR | xtrwsrct.outbound-mail.sendgrid.net | ||||||
| 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 | 34.36.182.139🇺🇸 Google34.32.0.0/11 | ||||||
| PTR | 139.182.36.34.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 (94/100)
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●MXmxa.mailgun.org2017-05-29 → 2026-05-15 · 2 obs
● 2026-05-15 13:20:56
●MXmxb.mailgun.org2017-05-29 → 2026-05-15 · 2 obs
● 2026-05-15 13:20:56
●A167.89.101.1992017-05-29 → 2026-05-15 · 2 obs
● 2026-05-15 13:20:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.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:198.51.44.72
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: 1382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 167.89.101.199 |
| 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
o8.sgmail.github.com points to a single IP number: 167.89.101.199.
Mail Servers
o8.sgmail.github.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.
o8.sgmail.github.com shares the same mail server setup as other domains, including mail.intonet.de, toremetal.com, csmac.nz, lucbeats.com and gorogoro.com.
o8.sgmail.github.com shares some mail servers with other domains, including lirneasia.net, samu.ca, caroami.com, ktss.ca and celeb.tv.
Host names with one IP number:
mxa.mailgun.org points to: 34.149.254.5.
mxb.mailgun.org points to: 34.36.182.139.