theplumbingsource.net

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-29 17:01:13 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 172.67.189.57 (no PTR)
  • 104.21.9.101 (no PTR)
  • 2606:4700:3031::6815:965
  • 2606:4700:3037::ac43:bd39

Mail Server IPs

  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.9.17 (no PTR)
  • 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA dorthy.ns.cloudflare.com dns.cloudflare.com 2398863197 10000 2400 604800 1800
Primary NS (mname)
dorthy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398863197
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dorthy.ns.cloudflare.com
theo.ns.cloudflare.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

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

3 records
  • MS=ms74238814
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • v=verifydomain MS=2766274
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