Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
dtnetservice.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 21:36:25 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx04.hornetsecurity.com: 200
- mx01.hornetsecurity.com: 10
- mx03.hornetsecurity.com: 200
A / AAAA Records
- 81.169.145.70 ↩ w06.rzone.de
- 2a01:238:20a:202:1070:: ↩ w06.rzone.de
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
SOA Record
Raw SOA
docks10.rzone.de hostmaster.strato-rz.de 2020101088 86400 7200 604800 300
Primary NS (mname)
docks10.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020101088
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks10.rzone.de
shades01.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:24.134.145.129 ip4:24.40.170.78 ip4:185.147.217.44 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- jeaqq32pp3jbjd40vvvkascf4i
- SPFv=spf1 ip4:24.134.145.129 ip4:24.40.170.78 ip4:185.147.217.44 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
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