Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marriott.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 14:45:09 UTC · ↺ Refresh
MX Hostnames
- marriott-de.mail.protection.outlook.com
MX Priorities
- marriott-de.mail.protection.outlook.com: 10
A / AAAA Records
- 23.195.100.92 ↩ a23-195-100-92.deploy.static.akamaitechnologies.com
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
use4.akam.net infrahostmastergtm.marriott.com 2007010560 10800 1800 604800 900
Primary NS (mname)
use4.akam.net
Admin Email (rname)
infrahostmastergtm@marriott.com
Serial
2007010560
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
eur1.akam.net
ns1-7.akam.net
ns1-22.akam.net
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; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
5 records- facebook-domain-verification=dwhzxrdpab5ocd627ksunjhufh8xcl
- SPFv=spf1 include:spf.marriott.com include:spf.protection.outlook.com -all
- ms=ms88734311
- adobe-idp-site-verification=b58a812cb8a67904b7b89c5ba71e21242157d93cc4609f572f4d63398d2f1c95
- docusign=03399c35-17f3-4ab4-b906-88e889db7d7e
Full email verification for marriott.de
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