Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
keuco.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 20:06:25 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- keuco-de.mail.protection.outlook.com
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 40
- mx03.hornetsecurity.com: 30
- mx02.hornetsecurity.com: 20
- mx01.hornetsecurity.com: 10
- keuco-de.mail.protection.outlook.com: 90
A / AAAA Records
- 85.214.81.161
- 2a01:238:42d0:1e00:3589:586e:aaac:4cf8
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.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::
- 2a01:111:f403:ca2d::
SOA Record
Raw SOA
nsa5.schlundtech.de martin\.kayser.keuco.de 2025043006 43200 7200 1209600 86400
Primary NS (mname)
nsa5.schlundtech.de
Admin Email (rname)
martin\@kayser.keuco.de
Serial
2025043006
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsc5.schlundtech.de
nsa5.schlundtech.de
nsb5.schlundtech.de
nsd5.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:80.152.136.118 ip4:109.91.166.69 ip4:130.180.14.82 ip4:145.253.192.244 ip4:145.253.192.245 ip4:84.201.71.162 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
6 records- MS=ms75951668
- apple-domain-verification=0dU5XO76fIX5Yucn
- SPFv=spf1 mx ip4:80.152.136.118 ip4:109.91.166.69 ip4:130.180.14.82 ip4:145.253.192.244 ip4:145.253.192.245 ip4:84.201.71.162 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
- ciscocidomainverification=52895a03cfbb4ac7f1515f402538c02230ea7d33427586b7ec0eb40a3c7070da
- adobe-idp-site-verification=9672c69572d804ef3ea61140e2bedd97471d95d74643e68c19b86bf10e92d8e0
- MS=B32B845BB7B0528880B89FD0054B100D1913294F
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