Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kiebel.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 06:36:42 UTC · ↺ Refresh
MX Hostnames
- kiebel-de.mail.protection.outlook.com
MX Priorities
- kiebel-de.mail.protection.outlook.com: 100
A / AAAA Records
- 172.67.74.51 (no PTR)
- 104.26.10.131 (no PTR)
- 104.26.11.131
- 2606:4700:20::681a:a83
- 2606:4700:20::ac43:4a33
- 2606:4700:20::681a:b83
Mail Server IPs
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
adel.ns.cloudflare.com dns.cloudflare.com 2400431321 10000 2400 604800 1800
Primary NS (mname)
adel.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400431321
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
terry.ns.cloudflare.com
adel.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:secure-mailgate.com include:spf.crsend.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com include:secure-mailgate.com include:spf.crsend.com -all
- google-site-verification=1F8tez3-TbKTvk2atkJnozfkDT16d7GyTQ_mk4FbtsM
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 kiebel.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits