mx.b.mailgun.org - robtex.com
mx.b.mailgun.org
b.mailgun.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.110.180.34🇺🇸 Google34.108.0.0/14 | ||||||
| MX | mxa.mailgun.org ⭐ | ||||||
| MX | mxb.mailgun.org ⭐ | ||||||
MX for
Same first word
Similar names
DNS History
4 records (3 active, 1 former)
●MXmxa.mailgun.org2026-06-21 → 2026-07-19 · 2 obs
● 2026-07-19 16:30:10
●MXmxb.mailgun.org2026-06-21 → 2026-07-19 · 2 obs
● 2026-07-19 16:30:10
●A34.102.239.2112026-07-02 → 2026-07-19 · 4 obs
● 2026-07-02 08:15:06
○ 2026-07-15 17:49:58
● 2026-07-19 16:30:10
○A34.110.180.342026-06-21 → 2026-07-15 · 4 obs
○ 2026-07-02 08:15:06
● 2026-07-15 17:49:58
○ 2026-07-19 16:30:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| mailgun.org | ns-1482.awsdns-57.org, ns-133.awsdns-16.com, ns-586.awsdns-09.net, ns-1614.awsdns-09.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.197.202
NS records: ns-1482.awsdns-57.org, ns-133.awsdns-16.com, ns-586.awsdns-09.net, ns-1614.awsdns-09.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mailgun.org (unsigned zone)
⏱️ Timing
Total: 666ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 34.102.239.211 |
| MX | 2 | mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10) |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-1482.awsdns-57.org, ns-1482.awsdns-57.org)
Analysis
Mail Server Role
Mail for pittsburghphysmed.com is routed through the mail server mx.b.mailgun.org.
pittsburghphysmed-com.mail.protection.outlook.com, mx.a.mailgun.org and mx.b.mailgun.org are frequently seen together as mail servers.
IP Addresses
mx.b.mailgun.org has exactly one IP address — 34.102.239.211.
repliesmxa.mailgun.org, org10mxb.mailgun.org, www2.mailgun.org plus two other host names have IP numbers in common with mx.b.mailgun.org.
Mail Servers
mx.b.mailgun.org uses two mail servers, mxa.mailgun.org and mxb.mailgun.org.
The mail server setup of mx.b.mailgun.org matches that of other domains such as ashotavakyan.com, adambsheikh.com, preentz.com and two others.
At least some of the mail servers used by mx.b.mailgun.org are shared with other domains: tcghacker.com, e.avoyatravel.com, keepmycoverage.com and two others among them.
The mail servers aspmx.l.google.com and alt1.aspmx.l.google.com are commonly paired with these mail servers.
Both mxa.mailgun.org and mxb.mailgun.org have a single IP address each — mxa.mailgun.org resolves to 34.36.182.139 while mxb.mailgun.org resolves to 34.149.254.5.