Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luttermann.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 05:51:55 UTC · ↺ Refresh
MX Hostnames
- mx02.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
- mx04.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 87.230.46.30 ↩ vwp3535.webpack.hosteurope.de
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
ns63.domaincontrol.com dns.jomax.net 2026031304 28800 7200 604800 600
Primary NS (mname)
ns63.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031304
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns63.domaincontrol.com
ns64.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rexx-systems.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; adkim=s; aspf=s; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ 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
7 records- SPFv=spf1 include:_spf.rexx-systems.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all
- MS=ms47703982
- google-site-verification=qPgFgpbAuE80B3j_G-KpV84YvKF8uYjmcjUNQ6RTE8w
- brevo-code:b3dc34d362a54dd2f49905ca6ca8ea1d
- teamviewer-sso-verification=3da45115b2a440d9a0ca1ab4ef6da4a4
- apple-domain-verification=WpwWZxnkOtPrdLE0
- miro-verification=9fab779889ed003ff4d6d5981677fa7c312b4b10
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