Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sterlingflight.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 16:52:28 UTC · ↺ Refresh
MX Hostnames
- sterlingflight-com.mail.protection.outlook.com
MX Priorities
- sterlingflight-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.8.138 (no PTR)
- 172.67.139.131 (no PTR)
- 2606:4700:3031::6815:88a
- 2606:4700:3034::ac43:8b83
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ignat.ns.cloudflare.com dns.cloudflare.com 2396492647 10000 2400 604800 1800
Primary NS (mname)
ignat.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396492647
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ignat.ns.cloudflare.com
pat.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:emsd1.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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
✗ 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
3 records- apple-domain-verification=Th3IsZML9MGtmIyh
- g9orj6tql3hjbao25952i7lllk
- SPFv=spf1 include:emsd1.com include:spf.protection.outlook.com -all
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