Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kls-berlin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 17:28:16 UTC · ↺ Refresh
MX Hostnames
- relay.rzone.de
- mail.kls-berlin.net
MX Priorities
- relay.rzone.de: 100
- mail.kls-berlin.net: 10
A / AAAA Records
- 83.135.251.212 ↩ i5387FBD4.versanet.de
Mail Server IPs
- 81.169.145.96 ↩ relay.rzone.de
- 83.135.251.211 ↩ i5387FBD3.versanet.de
- 2001:1438:4010:c211::41 (no PTR)
SOA Record
Raw SOA
ns1.kls-berlin.org hostmaster.kls-berlin.org 2026031901 86400 7200 604800 300
Primary NS (mname)
ns1.kls-berlin.org
Admin Email (rname)
hostmaster@kls-berlin.org
Serial
2026031901
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.kls-berlin.org
ns2.kls-berlin.org
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.strato.com ip4:83.135.251.208/29 ip6:2001:1438:4010:c211::/64 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf.strato.com ip4:83.135.251.208/29 ip6:2001:1438:4010:c211::/64 -all
- 66TKNK5iU12yJCCpIpsVh27Q+Uf3xpJWXhDm1sxNHAY8j866h5uHB0+H+dBAbuKQsQXK/Y3Apupfc+8f2Gq0dw==
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