Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
tax.hrblock.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 12:35:46 UTC · ↺ Refresh
MX Hostnames
- tax-hrblock-com.mail.protection.outlook.com
MX Priorities
- tax-hrblock-com.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:168.137.100.125 ip4:208.185.229.0/24 ip4:168.137.64.32/28 ip4:168.137.72.32/28 ip4:168.137.102.65 ip4:168.137.32.20 ip4:168.137.102.71 ip4:168.137.102.72 ip4:168.137.103.124 ip4:168.137.103.125 ip4:168.137.103.126 ip4:68.232.145.15 ip4:168.137.64.0/27 ip4:68.232.145.16 a:c.spf.service-now.com include:spf.messagelabs.com include:spf1.formassembly.com include:spf.protection.outlook.com include:spfhost.messageprovider.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=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
2 records- webexdomainverification.4C675B8B60C9B136E053AB06FC0A3F65=36c5f00d-8227-4574-845c-59b142e98450
- SPFv=spf1 mx ip4:168.137.100.125 ip4:208.185.229.0/24 ip4:168.137.64.32/28 ip4:168.137.72.32/28 ip4:168.137.102.65 ip4:168.137.32.20 ip4:168.137.102.71 ip4:168.137.102.72 ip4:168.137.103.124 ip4:168.137.103.125 ip4:168.137.103.126 ip4:68.232.145.15 ip4:168.137.64.0/27 ip4:68.232.145.16 a:c.spf.service-now.com include:spf.messagelabs.com include:spf1.formassembly.com include:spf.protection.outlook.com include:spfhost.messageprovider.com -all
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