Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
kelmaplast.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-11-10 12:49:15 UTC · ↺ Refresh
MX Hostnames
- mx2-eu.emailsecurity.app
- mx1-eu.emailsecurity.app
MX Priorities
- mx2-eu.emailsecurity.app: 20
- mx1-eu.emailsecurity.app: 10
A / AAAA Records
- 81.169.145.90 ↩ w8a.rzone.de
- 2a01:238:20a:202:1090:: ↩ w8a.rzone.de
Mail Server IPs
- 4.245.183.72 ↩ mx1-eu.emailsecurity.app
- 132.164.188.153 ↩ mx2-eu.emailsecurity.app
SOA Record
Raw SOA
docks07.rzone.de hostmaster.strato-rz.de 2020052114 86400 7200 604800 300
Primary NS (mname)
docks07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020052114
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades02.rzone.de
docks07.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.emailsecurity.app include:spf.protection.outlook.com include:spf.m-1.eu-1.quentn.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ 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
1 record- SPFv=spf1 include:spf1.emailsecurity.app include:spf.protection.outlook.com include:spf.m-1.eu-1.quentn.com -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 · Customize →
See demo & docs
Deep verification
Full email verification for kelmaplast.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits