Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
deltahotels.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:45:18 UTC · ↺ Refresh
MX Hostnames
- deltahotels-com.mail.protection.outlook.com
MX Priorities
- deltahotels-com.mail.protection.outlook.com: 10
A / AAAA Records
- 3.214.21.245 ↩ ec2-3-214-21-245.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1351.awsdns-40.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1351.awsdns-40.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1351.awsdns-40.org
ns-1831.awsdns-36.co.uk
ns-518.awsdns-00.net
ns-7.awsdns-00.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.marriott.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- adobe-idp-site-verification=b58a812cb8a67904b7b89c5ba71e21242157d93cc4609f572f4d63398d2f1c95
- docusign=58e6c0a3-a028-492c-8aac-601164a24a09
- SPFv=spf1 include:spf.marriott.com include:spf.protection.outlook.com -all
- MS=ms24070131
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