zinshaus21.de

Valid Email Server
Domain Lookup › zinshaus21.de

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
zinshaus21.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-20 10:12:08 UTC · ↺ Refresh

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MX Hostnames

  • mx-4.businessbit.cloud
  • mx-1.businessbit.cloud
  • mx-3.businessbit.cloud
  • mx-2.businessbit.cloud

MX Priorities

  • mx-4.businessbit.cloud: 4
  • mx-2.businessbit.cloud: 2
  • mx-1.businessbit.cloud: 1
  • mx-3.businessbit.cloud: 3

A / AAAA Records

  • 88.198.18.123 ↩ kunden-web01.businessbit.cloud

Mail Server IPs

  • 148.251.126.43 ↩ mx-4.businessbit.cloud
  • 88.198.18.113 ↩ mx-2.businessbit.cloud
  • 88.198.18.119 ↩ mx-1.businessbit.cloud
  • 148.251.126.9 ↩ mx-3.businessbit.cloud

SOA Record

Raw SOA root-dns.netcup.net dnsadmin.netcup.net 2026030930 3600 7200 12096 3600
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2026030930
Refresh
3600s
Retry
7200s
Expire
12096s
Minimum TTL
3600s

Nameservers (NS)

second-dns.netcup.net
third-dns.netcup.net
root-dns.netcup.net

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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
  • DMARCv=DMARC1;p=none;pct=10;rua=mailto:[email protected]
  • SPFv=spf1 mx ~all
  • google-site-verification=3pMR13oYTttogDxEOhK6i6q3kJp9j9rKPwprqHfOAPA
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