Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bsz-gast.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 10:17:03 UTC · ↺ Refresh
MX Hostnames
- cs1.karsch-net.de
MX Priorities
- cs1.karsch-net.de: 10
A / AAAA Records
- 81.209.255.165 ↩ 165.cs1.karsch-net.de
- 2001:7f0:3000:512::512:165 ↩ 165.cs1.karsch-net.de
Mail Server IPs
- 81.209.255.139 ↩ cs1.karsch-net.de
- 2001:7f0:3000:512::512:139 ↩ cs1.karsch-net.de
SOA Record
Raw SOA
ns2.karsch-net.de info.bsz-gast.de 2026030501 10800 3600 604800 10800
Primary NS (mname)
ns2.karsch-net.de
Admin Email (rname)
info@bsz-gast.de
Serial
2026030501
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns3.karsch-net.de
ns2.karsch-net.de
ns4.karsch-net.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +a:cs1.karsch-net.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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 +a:cs1.karsch-net.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
See demo & docs
Deep verification
Full email verification for bsz-gast.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits