hartburg.de

Valid Email Server
Domain Lookup › hartburg.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hartburg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 16:19:38 UTC · ↺ Refresh

MX Hostnames

  • hartburg-de.mail.protection.outlook.com

MX Priorities

  • hartburg-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 3.66.0.61 ↩ ec2-3-66-0-61.eu-central-1.compute.amazonaws.com
  • 2a05:d014:9bc:6201:f95c:73e5:7293:9c9d (no PTR)

Mail Server IPs

  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1684.awsdns-18.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1684.awsdns-18.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-678.awsdns-20.net
ns-1256.awsdns-29.org
ns-1684.awsdns-18.co.uk
ns-305.awsdns-38.com

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:amazonses.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • MS=ms70207820
  • SPFv=spf1 mx include:spf.protection.outlook.com include:amazonses.com -all
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