Domain Overview
DNS: ✓ 8d ago
Checker: ✓ 8d ago
zahnarzt-praxis-heilbronn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-23 11:10:38 UTC · ↺ Refresh
MX Hostnames
- mx3.agenturserver.de
- mx2.agenturserver.de
- mx4.agenturserver.de
- mx1.agenturserver.de
MX Priorities
- mx2.agenturserver.de: 10
- mx4.agenturserver.de: 50
- mx3.agenturserver.de: 20
- mx1.agenturserver.de: 10
A / AAAA Records
- 193.53.250.102 ↩ r30496.agenturserver.it
Mail Server IPs
- 185.15.192.57 ↩ mx2.agenturserver.de
- 185.15.192.59 ↩ mx4.agenturserver.de
- 185.15.192.58 ↩ mx3.agenturserver.de
- 185.15.192.56 ↩ mx1.agenturserver.de
SOA Record
Raw SOA
ns1.rrpproxy.net tech.rrpproxy.net 2022103132 10800 3600 604800 28800
Primary NS (mname)
ns1.rrpproxy.net
Admin Email (rname)
tech@rrpproxy.net
Serial
2022103132
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.execute-hosting.de
ns1.execute-hosting.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:agenturserver.de include:mx.ovh.com ~all
📊 DNS lookups: 3/10
~ 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
2 records- SPFv=spf1 include:agenturserver.de include:mx.ovh.com ~all
- 1|www.zahnarzt-praxis-heilbronn.de
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 zahnarzt-praxis-heilbronn.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits