Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thomaskeller.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 06:52:12 UTC · ↺ Refresh
MX Hostnames
- thomaskeller-com.mail.protection.outlook.com
MX Priorities
- thomaskeller-com.mail.protection.outlook.com: 0
A / AAAA Records
- 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com
Mail Server IPs
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns91.worldnic.com namehost.worldnic.com 125031112 10800 3600 604800 3600
Primary NS (mname)
ns91.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125031112
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns91.worldnic.com
ns92.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:64.142.119.144/28 a:salesforce.com a:ccsend.com a:constantcontact.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- SPFv=spf1 include:spf.protection.outlook.com ip4:64.142.119.144/28 a:salesforce.com a:ccsend.com a:constantcontact.com -all
- MS=ms18683217
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