Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
activmarine.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 15:06:11 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx04.hornetsecurity.com
MX Priorities
- mx04.hornetsecurity.com: 200
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 200
- mx01.hornetsecurity.com: 10
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
SOA Record
Raw SOA
docks07.rzone.de hostmaster.strato-rz.de 2020060637 86400 7200 604800 300
Primary NS (mname)
docks07.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020060637
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks07.rzone.de
shades07.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:37.228.144.119 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
3 records- MS=ms88330451
- google-site-verification=oUNE3by4t96m9RZz-nM753Key4-du8J48FGbUCZuJic
- SPFv=spf1 ip4:37.228.144.119 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:sendgrid.net -all
Full email verification for activmarine.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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