Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
werk21.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 09:58:05 UTC · ↺ Refresh
MX Hostnames
- mx4.werk21system.de
- mx3.werk21system.de
MX Priorities
- mx4.werk21system.de: 20
- mx3.werk21system.de: 10
A / AAAA Records
- 149.233.9.89 ↩ s112-089.werk21system.de
Mail Server IPs
- 78.46.128.86 ↩ mx4.werk21system.de
- 91.216.245.166 ↩ mx3.werk21system.de
SOA Record
Raw SOA
ns.werk21system.de hostmaster.werk21.de 2026032401 86400 900 2592000 3600
Primary NS (mname)
ns.werk21system.de
Admin Email (rname)
hostmaster@werk21.de
Serial
2026032401
Refresh
86400s
Retry
900s
Expire
2592000s
Minimum TTL
3600s
Nameservers (NS)
ns1.werk21system.de
ns2.werk21system.de
ns3.werk21system.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a include:spf1.werk21system.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
5 records- google-site-verification=R0XDTCYvL8dxxGo8B3NqAYp0UpHV-p7a8SF_qzXeGkw
- MS=ms92507709
- SPFv=spf1 mx a include:spf1.werk21system.de ~all
- b7add5c0d13ebd49321b1cc891874ab8
- brevo-code:72c2732642c6e5dd159b18e7bf66b750
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