Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sinclair-co.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 17:58:44 UTC · ↺ Refresh
MX Hostnames
- sinclairco-com02b.mail.protection.outlook.com
MX Priorities
- sinclairco-com02b.mail.protection.outlook.com: 10
A / AAAA Records
- 107.180.54.210 ↩ 210.54.180.107.host.secureserver.net
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.mediatemple.net dns.jomax.net 2023041300 28800 7200 604800 600
Primary NS (mname)
ns1.mediatemple.net
Admin Email (rname)
dns@jomax.net
Serial
2023041300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns2.mediatemple.net
ns1.mediatemple.net
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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- 5tcboosc091fsu7m9fs5lh1q60
- SPFv=spf1 include:spf.protection.outlook.com -all
- n3jqs5nnqnfcfqdc85esmjgncb
- notokenfound
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