Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tda.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 20:00:54 UTC · ↺ Refresh
MX Hostnames
- tda-org.mail.protection.outlook.com
MX Priorities
- tda-org.mail.protection.outlook.com: 0
A / AAAA Records
- 52.162.107.38 (no PTR)
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns75.worldnic.com namehost.worldnic.com 125060415 10800 3600 604800 3600
Primary NS (mname)
ns75.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125060415
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns75.worldnic.com
ns76.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:72.48.136.228 ip4:69.25.30.75 include:spf.protection.outlook.com include:_spf.votervoice.net include:spf.mandrillapp.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
3 records- SPFv=spf1 ip4:72.48.136.228 ip4:69.25.30.75 include:spf.protection.outlook.com include:_spf.votervoice.net include:spf.mandrillapp.com -all
- SFMC-ySCphtKEYdHNu_02HYp7cZpuNsG1H47KG-7bJKPh
- logmein-verification-code=7d735e97-c148-47ff-89c2-992e1b1ab5f3
Full email verification for tda.org
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