sdcontracting.com

Valid Email Server
Domain Lookup › sdcontracting.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
sdcontracting.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 23:38:31 UTC · ↺ Refresh

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MX Hostnames

  • sdcontracting-com.mail.protection.outlook.com

MX Priorities

  • sdcontracting-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 104.21.0.117 (no PTR)
  • 172.67.150.237 (no PTR)
  • 2606:4700:3037::6815:75
  • 2606:4700:3037::ac43:96ed

Mail Server IPs

  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA lana.ns.cloudflare.com dns.cloudflare.com 2400229386 10000 2400 604800 1800
Primary NS (mname)
lana.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400229386
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

mark.ns.cloudflare.com
lana.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
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms77714880
  • MS=ms94010878
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