Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optik-hauck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 22:16:24 UTC · ↺ Refresh
MX Hostnames
- mail.ibs.de
- mail.transkom.net
MX Priorities
- mail.ibs.de: 190
- mail.transkom.net: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 212.28.34.80 ↩ mail.transkom.net
SOA Record
Raw SOA
ns.ibs.de info.ibs.de 2023070500 28800 7200 604800 86400
Primary NS (mname)
ns.ibs.de
Admin Email (rname)
info@ibs.de
Serial
2023070500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.transkom.net
ns2.transkom.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:212.28.34.0/24 ~all
📊 DNS lookups: 0/10
~ 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 ip4:212.28.34.0/24 ~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
See demo & docs
Deep verification
Full email verification for optik-hauck.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits