Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wittmer-it.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 08:47:20 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx04.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 5.175.14.65 ↩ wp543.webpack.hosteurope.de
- 2a01:488:42:1000:50ed:8241:52:409d (no PTR)
Mail Server IPs
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
ns13.domaincontrol.com dns.jomax.net 2026031700 28800 7200 604800 600
Primary NS (mname)
ns13.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031700
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns14.domaincontrol.com
ns13.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com a:smtp-relay.eu.cloud.im -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1 ;p=reject; sp=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- XLTaYRa5b0Hjo1qjMK/plMQVjIsyTu1EgNVoF79ywkMg84b8B8msYeQduXu9EORzwf0iVEeduz4hYiT2ooMF6A==
- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com a:smtp-relay.eu.cloud.im -all
- atlassian-domain-verification=0xUObBSzNn3YK7XAb7fPcK8/JVmxrTEEZcHab7bXBJISZaeLVRzSYpsa48nk2tGT
- atlassian-sending-domain-verification=4d32a97e-4fa4-48bd-9d5b-fe8327d6e8a9
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