Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thomasbuilder.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 21:10:09 UTC · ↺ Refresh
MX Hostnames
- thomasbuilder-com.mail.protection.outlook.com
MX Priorities
- thomasbuilder-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.116.77.52 ↩ lamp109.cloudaccess.net
Mail Server IPs
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns35.domaincontrol.com dns.jomax.net 2026012200 28800 7200 604800 600
Primary NS (mname)
ns35.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012200
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns35.domaincontrol.com
ns36.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:SendGrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
5 records- google-site-verification=s61HcbkGfVcYHLPCJVv48Scn7LlMbjndFJqPpoFVH6M
- SPFv=spf1 include:spf.protection.outlook.com include:SendGrid.net -all
- google-site-verification=UyZ9sznc_Ij1RqHpbt8Fa8uybG2j6yNMAkeJawZQdJo
- linkedin-site-verification=14c78a6b-d37c-4578-a1c2-751a642d44b7
- Linkedin-site-verification=74500e40-34ac-4ba9-9bbc-51b880e7f797
Full email verification for thomasbuilder.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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