Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
flemming-klingbeil.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 11:48:44 UTC · ↺ Refresh
MX Hostnames
- flemmingklingbeil-de02b.mail.protection.outlook.com
MX Priorities
- flemmingklingbeil-de02b.mail.protection.outlook.com: 0
A / AAAA Records
- 168.119.176.244 ↩ srv.flemming-klingbeil.de
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-04.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-04.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-04.azure-dns.info
ns1-04.azure-dns.com
ns2-04.azure-dns.net
ns3-04.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:91.217.174.87 ip4:172.19.1.1 ip4:168.119.176.244 a:mailout.demant.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- facebook-domain-verification=q033ao88q0aypr0rsl8nyvbdc7fgy6
- google-site-verification=2YARfIRSWjNiobdYIwVMDtv4EmdvsNqjFtTfAa8hF34
- google-site-verification=7bskjMLCakROMzPpGmRB84dhA5AEOhuwYSXPU4hldy8
- google-site-verification=vq7fKDqOaCKHx2cgo1zzmHb01BsVfYyhqSWIP3mgYWE
- SPFv=spf1 a mx ip4:91.217.174.87 ip4:172.19.1.1 ip4:168.119.176.244 a:mailout.demant.com include:spf.protection.outlook.com -all
- MS=ms47565837
- seobility=4bfbfd9b5cf7a5ae73e3e49866506497
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
See demo & docs
Deep verification
Full email verification for flemming-klingbeil.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits