sterkrader.de

Valid Email Server
Domain Lookup › sterkrader.de

Domain Overview

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

Checked via [email protected] · 2026-03-23 07:30:32 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • sterkrader-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 31.220.125.171 ↩ r16000.agenturserver.it

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.kompool.de w3root.kompool.de 2017021646 14400 3600 604800 86400
Primary NS (mname)
ns1.kompool.de
Admin Email (rname)
w3root@kompool.de
Serial
2017021646
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.kompool.de
ns2.kompool.net

SPF Record

✓ Strict (-all)
v=spf1 a mx include:mail.sterkrader.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ 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
✓ 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

3 records
  • MS=ms91149761
  • google-site-verification=-Czl85XZ1XHA7AEg_EB8EZ9htUvGWtWZ7HxtOUUuWJg
  • SPFv=spf1 a mx include:mail.sterkrader.de include:spf.protection.outlook.com -all
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