Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
keil-group.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 11:24:23 UTC · ↺ Refresh
MX Hostnames
- keilgroup-de01b.mail.protection.outlook.com
MX Priorities
- keilgroup-de01b.mail.protection.outlook.com: 10
A / AAAA Records
- 78.46.248.4 ↩ static.4.248.46.78.clients.your-server.de
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.inwx.de hostmaster.inwx.de 2026031901 10800 3600 604800 3600
Primary NS (mname)
ns.inwx.de
Admin Email (rname)
hostmaster@inwx.de
Serial
2026031901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.inwx.eu
ns.inwx.de
ns2.inwx.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:212.118.206.21 include:spf.protection.outlook.com include:spf.sendinblue.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._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
7 records- google-site-verification=oVEHHXT0FxaOD1xnmR0eBPGSYFYhqLbSCc6eRgiSsr4
- brevo-code:c6dcb3cb3571934eacb6b249622d3194
- MS=ms45281618
- 2019082914353309s4nw7sastntpyelv60hcrbdivunsgke6ytzikmn96toi3opc
- 201809120836271isarvomb5na1qbtwy6q9hs11xt07xawjou3fb3qng09c9a3nf
- Sendinblue-code:c6dcb3cb3571934eacb6b249622d3194
- SPFv=spf1 a mx ip4:212.118.206.21 include:spf.protection.outlook.com include:spf.sendinblue.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
See demo & docs
Deep verification
Full email verification for keil-group.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits