Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
klat-system.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 20:08:47 UTC · ↺ Refresh
MX Hostnames
- mail.klat-system.de
- klatsystem-de01b.mail.protection.outlook.com
- ms93305473.msv1.invalid
MX Priorities
- ms93305473.msv1.invalid: 50
- klatsystem-de01b.mail.protection.outlook.com: 5
- mail.klat-system.de: 10
A / AAAA Records
- 185.146.238.132 ↩ hosting03.nbgo.de
- 2a02:420:0:10::400 ↩ hosting03.nbgo.de
Mail Server IPs
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.91.159 ↩ mail-matpr04cu00207.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::6 ↩ mail-zrxpr04cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::26 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 185.146.238.132 ↩ hosting03.nbgo.de
- 2a02:420:0:10::400 ↩ hosting03.nbgo.de
SOA Record
Raw SOA
pri-h03.nbgo.de mklatetzki.klat-system.de 2026071201 10800 3600 1209600 10800
Primary NS (mname)
pri-h03.nbgo.de
Admin Email (rname)
mklatetzki@klat-system.de
Serial
2026071201
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
pri-h03.nbgo.de
sec-dns01.nbgo.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.emailsignatures365.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.emailsignatures365.com include:spf.protection.outlook.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 klat-system.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits