Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
butter-immobilien.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 04:59:21 UTC · ↺ Refresh
MX Hostnames
- mailgw-1.hebatec.de
- mailgw-2.hebatec.de
MX Priorities
- mailgw-2.hebatec.de: 20
- mailgw-1.hebatec.de: 10
A / AAAA Records
- 185.245.98.39 (no PTR)
- 2a0a:51c0::3d:0:0:0:39 ↩ k12857.vs.hebatec.de
Mail Server IPs
- 185.245.98.61 ↩ mailgw-2.hebatec.de
- 185.245.98.60 ↩ mailgw-1.hebatec.de
SOA Record
Raw SOA
rs3.hebatec.de server.hebatec-hosting.de 2025051333 7200 3600 604800 10800
Primary NS (mname)
rs3.hebatec.de
Admin Email (rname)
server@hebatec-hosting.de
Serial
2025051333
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns2.hebatec.de
rs3.hebatec.de
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:rs3.hebatec.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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
2 records- SPFv=spf1 +a +mx +a:rs3.hebatec.de -all
- google-site-verification=LMFdJp8J5jGgKLtxXmjktnJcMglR-F-AHgYUi-XfWR4
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 butter-immobilien.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits