Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
klt.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 22:08:18 UTC · ↺ Refresh
MX Hostnames
- klt-de.mail.protection.outlook.com
MX Priorities
- klt-de.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.68.25 (no PTR)
- 172.67.185.119 (no PTR)
- 2606:4700:3030::6815:4419
- 2606:4700:3033::ac43:b977
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ivan.ns.cloudflare.com dns.cloudflare.com 2400303856 10000 2400 604800 1800
Primary NS (mname)
ivan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400303856
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zita.ns.cloudflare.com
ivan.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:93.188.25.2 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; adkim=s; aspf=s; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 a mx ip4:93.188.25.2 include:spf.protection.outlook.com -all
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