Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
muldoonbritton.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 05:31:44 UTC · ↺ Refresh
MX Hostnames
- muldoonbritton-com.mail.protection.outlook.com
MX Priorities
- muldoonbritton-com.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.180.186 (no PTR)
- 104.21.18.68 (no PTR)
- 2606:4700:3034::ac43:b4ba
- 2606:4700:3037::6815:1244
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ed.ns.cloudflare.com dns.cloudflare.com 2396299296 10000 2400 604800 1800
Primary NS (mname)
ed.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396299296
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ed.ns.cloudflare.com
rita.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
✗ MissingNo 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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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