Domain Overview
DNS: ✓ 9h ago
Checker: ✓ 9h ago
zillkon.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-02 11:25:07 UTC · ↺ Refresh
MX Hostnames
- mailx.zillkon.de
MX Priorities
- mailx.zillkon.de: 10
A / AAAA Records
- 188.94.251.89 ↩ r2619.agenturserver.it
Mail Server IPs
- 212.204.41.42 ↩ vpn.ask-brb.de
SOA Record
Raw SOA
ns1081.ui-dns.biz hostmaster.1und1.de 2017070498 28800 7200 604800 300
Primary NS (mname)
ns1081.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017070498
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1081.ui-dns.de
ns1081.ui-dns.com
ns1081.ui-dns.org
ns1081.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf-eu.ionos.com include:agenturserver.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate 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
1 record- SPFv=spf1 a mx include:_spf-eu.ionos.com include:agenturserver.de ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for zillkon.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits