Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
derpart.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 07:24:14 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
MX Priorities
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
A / AAAA Records
- 178.16.58.155 (no PTR)
Mail Server IPs
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
SOA Record
Raw SOA
ns01.agenturserver.de support.mittwald.de 1768610500 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1768610500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns01.agenturserver.de
ns01.agenturserver.it
ns01.agenturserver.co
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.derpart.com include:spf2.derpart.com include:spf3.derpart.com include:spf4.derpart.com include:spf.hornetsecurity.com include:_spf.google.com include:spf.mailjet.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=reject; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- cisco-ci-domain-verification=7546f7a8ef8dd2fc955360e94550904921e3a7ee0bdc5ca204d01ead080b023
- google-site-verification=pJEKIh6fNJufT6xJ642pZYY9k35EOxNMuj7dPFwdeV4
- brevo-code:5b9dd8de42237a127240433c2ed7268f
- SPFv=spf1 include:spf1.derpart.com include:spf2.derpart.com include:spf3.derpart.com include:spf4.derpart.com include:spf.hornetsecurity.com include:_spf.google.com include:spf.mailjet.com -all
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