Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heizung-sanitaerbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 14:14:05 UTC · ↺ Refresh
MX Hostnames
- mx0.heizung-sanitaerbau.de
MX Priorities
- mx0.heizung-sanitaerbau.de: 50
A / AAAA Records
- 5.175.14.54 ↩ wp532.webpack.hosteurope.de
- 2a01:488:42:1000:50ed:8236:a:d4d7 ↩ heizung-sanitaerbau.de
Mail Server IPs
- 80.237.138.5 ↩ mx0.webpack.hosteurope.de
SOA Record
Raw SOA
ns57.domaincontrol.com dns.jomax.net 2024111804 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024111804
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns58.domaincontrol.com
ns57.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.server-he.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ 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
7 records- google-site-verification=_jd-4zW_RZpG5SE8CXg_LmBlFk7SUJd2yPlkLqAmYC4
- ttvg7380irpfm3s1vjjr653bu6
- SPFv=spf1 a mx include:spf.server-he.de -all
- MS=ms80013009
- MS=ms56895275
- apple-domain-verification=Ht7CNouq2N1ICcow
- o2lj2upmir2tfp11cjhaiifeci
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 heizung-sanitaerbau.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits