Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ck-akademie.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 06:34:28 UTC · ↺ Refresh
MX Hostnames
- ckakademie-de0e.mail.protection.outlook.com
MX Priorities
- ckakademie-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 136.243.165.93 ↩ dedi4807.your-server.de
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
shades11.rzone.de hostmaster.strato-rz.de 2020050720 86400 7200 604800 300
Primary NS (mname)
shades11.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050720
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks15.rzone.de
shades11.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:136.243.165.0/24 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ 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
4 records- MS=ms64235948
- google-site-verification=KtxsO-mStiyiqp7CX6X6JSwpW7oS19_doE7dwGpE9og
- 201801301744122c147ybm9lfqebmxt7g3v6cyrl3y3sqe9tqfnvkzgljpqxd269
- SPFv=spf1 include:spf.protection.outlook.com ip4:136.243.165.0/24 -all
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