Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zfn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 02:12:24 UTC · ↺ Refresh
MX Hostnames
- z.zfn.de
- x.zfn.de
MX Priorities
- x.zfn.de: 10
- z.zfn.de: 10
A / AAAA Records
- 188.40.220.150 ↩ dedi4000.your-server.de
- 2a01:4f8:1061:164b::2 ↩ dedi4000.your-server.de
Mail Server IPs
- 82.135.126.34 ↩ x.zfn.de
SOA Record
Raw SOA
ns-515.awsdns-00.net awsdns-hostmaster.amazon.com 2017070700 7200 900 1209600 86400
Primary NS (mname)
ns-515.awsdns-00.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2017070700
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-515.awsdns-00.net
ns-1331.awsdns-38.org
ns-1649.awsdns-14.co.uk
ns-390.awsdns-48.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:149.56.132.196 ip4:52.58.72.172 ip4:80.73.113.113 include:spf.nl2go.com include:mail3.zfn.schule -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- SPFv=spf1 mx ip4:149.56.132.196 ip4:52.58.72.172 ip4:80.73.113.113 include:spf.nl2go.com include:mail3.zfn.schule -all
- MS=2A7CCE7B4D35F0E929A81FE047A059E20B7FF1A4
Full email verification for zfn.de
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