armstrongplumbing.net

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
armstrongplumbing.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 01:07:53 UTC · ↺ Refresh

MX Hostnames

  • armstrongplumbing-net.mail.protection.outlook.com

MX Priorities

  • armstrongplumbing-net.mail.protection.outlook.com: 0

A / AAAA Records

  • 162.159.134.42 (no PTR)

Mail Server IPs

  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns65.domaincontrol.com dns.jomax.net 2026022400 28800 7200 604800 600
Primary NS (mname)
ns65.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022400
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns66.domaincontrol.com
ns65.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

8 records
  • MS=ms32086667
  • MS=ms73738070
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms60831541
  • google-site-verification=uhxGgNGFIOzzu1i7IjksURy3auznTQwq9XKJHIsa7iw
  • ca3-e987ab71fdfc4d8f9d6f07c861235f27
  • MS=ms71088919
  • MS=ms47935719
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