bookwise.de

Valid Email Server
Domain Lookup › bookwise.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bookwise.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 15:20:53 UTC · ↺ Refresh

MX Hostnames

  • mail.clustermail.de

MX Priorities

  • mail.clustermail.de: 10

A / AAAA Records

  • 212.63.145.150 ↩ linux21.unixserver.org
  • 2a02:708::111:0:0:0:2 ↩ linux21.unixserver.org

Mail Server IPs

  • 212.223.165.71 ↩ frontend.clustermail.de

SOA Record

Raw SOA ns2.nameserver.de dnsmaster.ns2.nameserver.de 2024102900 86400 3600 604800 3600
Primary NS (mname)
ns2.nameserver.de
Admin Email (rname)
dnsmaster@ns2.nameserver.de
Serial
2024102900
Refresh
86400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.nameserver.de
ns1.nameserver.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.clustermail.de -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

1 record
  • SPFv=spf1 include:spf.clustermail.de -all
Full email verification for bookwise.de

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

SPF / DKIM / DMARC Get 1,000 Free Credits