Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zks-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 10:58:25 UTC · ↺ Refresh
MX Hostnames
- mail.zks-gmbh.de
MX Priorities
- mail.zks-gmbh.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 89.246.108.167 ↩ mail.zks-gmbh.de
SOA Record
Raw SOA
ns01.versatel.de hostmaster.versatel.de 2026022700 86400 28800 3600000 86400
Primary NS (mname)
ns01.versatel.de
Admin Email (rname)
hostmaster@versatel.de
Serial
2026022700
Refresh
86400s
Retry
28800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns04.versatel.de
ns02.versatel.de
ns01.versatel.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:89.246.108.167 ~all
📊 DNS lookups: 1/10
~ 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
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- 5b4f09f4ba22cee63614dd314d2326942aa15d19d9619ac3d622872beebb703
- SPFv=spf1 mx ip4:89.246.108.167 ~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 zks-gmbh.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits