Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdsigma.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 04:31:25 UTC · ↺ Refresh
MX Hostnames
- sdsigma-com.mail.protection.outlook.com
MX Priorities
- sdsigma-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.20.43.173 (no PTR)
- 172.66.168.165 (no PTR)
- 2606:4700:10::6814:2bad
- 2606:4700:10::ac42:a8a5
Mail Server IPs
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
frank.ns.cloudflare.com dns.cloudflare.com 2399549104 10000 2400 604800 1800
Primary NS (mname)
frank.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399549104
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
martha.ns.cloudflare.com
frank.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
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- facebook-domain-verification=mldsrdpyw93i2cu9qluf9d42wkstkp
- k8vjf5mk21hi3egtavad86oj9l
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for sdsigma.com
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