Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nmcdallas.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 21:47:31 UTC · ↺ Refresh
MX Hostnames
- nmcdallas-com.mail.protection.outlook.com
MX Priorities
- nmcdallas-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.166.206 (no PTR)
- 104.21.49.199 (no PTR)
- 2606:4700:3036::ac43:a6ce
- 2606:4700:3031::6815:31c7
Mail Server IPs
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
aryanna.ns.cloudflare.com dns.cloudflare.com 2400378174 10000 2400 604800 1800
Primary NS (mname)
aryanna.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400378174
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
eric.ns.cloudflare.com
aryanna.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:71.78.177.250 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100;rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
1 record- SPFv=spf1 ip4:71.78.177.250 include:spf.protection.outlook.com -all
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