zuk.de

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-29 22:51:38 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 212.82.36.221 ↩ phantom.zuk.de
  • 2a04:6c0:b:5::1 ↩ phantom.zuk.de

Mail Server IPs

  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.14v.de hostmaster.one4vision.de 2025141109 7200 3600 1209600 600
Primary NS (mname)
ns01.14v.de
Admin Email (rname)
hostmaster@one4vision.de
Serial
2025141109
Refresh
7200s
Retry
3600s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns01.14v.de
ns03.14v.de
ns02.14v.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:212.82.36.219 ip6:2a04:6c0:b:2::1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

3 records
  • SPFv=spf1 ip4:212.82.36.219 ip6:2a04:6c0:b:2::1 include:spf.protection.outlook.com -all
  • google-site-verification=S2Lm-3bgEOSvVKkSHkjXvaqOwAiH8yWZnuvSurTlrZA
  • MS=ms72886120
Full email verification for zuk.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits