zek.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zek.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 16:40:42 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 92.204.37.106 ↩ ms10671.ispgateway.de
  • 2a00:1158:5:66a:: ↩ ms10671.ispgateway.de

Mail Server IPs

  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns81.domaincontrol.com dns.jomax.net 2025111902 28800 7200 604800 600
Primary NS (mname)
ns81.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025111902
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns81.domaincontrol.com
ns82.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:ispgateway.de include:spf.sendinblue.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

✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 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

4 records
  • MS=ms35425753
  • MS=804198673C9571F670DDA13F198529B0D60048EF
  • google-site-verification=vo-LxrTczeg8hmCnSgz_elSgQuHxY2bkc8ovqcJ7Fj0
  • SPFv=spf1 include:spf.protection.outlook.com include:ispgateway.de include:spf.sendinblue.com -all
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