Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hks-systeme.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 02:32:27 UTC · ↺ Refresh
MX Hostnames
- hkssysteme-de0i.mail.protection.outlook.com
MX Priorities
- hkssysteme-de0i.mail.protection.outlook.com: 5
A / AAAA Records
- 91.203.110.221 ↩ host221.checkdomain.de
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.checkdomain.de hostmaster.checkdomain.de 2026040208 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
hostmaster@checkdomain.de
Serial
2026040208
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns.checkdomain.de
ns2.checkdomain.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
13 records- google-site-verification=d_7Ll4-HNooH3TI0VCBmLYt9JxCLrmJToY2hmAGmu0c
- brevo-code:b9f0c81538c1c0c1eb397b4c09ed50e0
- google-site-verification=Fsw_shCeLtn3L9zzwRyB2OIbmI-9EVXaCp88-JHveWY
- google-site-verification=dCpiQYj_SefH3vf3YoXVqSdvxzWl2bs9BI0EmeEm9zE
- wU2A+81+v56b1furhSevtB+//UQBn8WblpoMyXAvsZyuQJFcDo6X7HyWXgBt/+UqMg9iPDj/ASF2eMIpOBoZwA==
- SPFv=spf1 include:spf.protection.outlook.com -all
- citrix-verification-code=2d5c5f00-4c5d-4b65-8c67-315a1497227b
- google-site-verification=9F5zGSbtax6Kfdo57bS9oJNGoFOrFbK68w0Whs31JeI
- google-site-verification=Ryz9987NRvPNxyN-G3LZxvK7g7fNuAuuXJkSE-oERqQ
- 01mhsk8xlgd8lwh5m6v10l6j4x1lqn8y
- kgtS4s/T1DjIkIwXcHvZzEtPJBTuDG1GflDohxalt2W0hTuTM3gmbcisabmT1s7SkDeRye66/JhoZV6yFvJgmw==
- facebook-domain-verification=ctxopqakqll3o3o4ztcf5qjqd5ayrs
- MS=ms42236190
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