gruss-gmbh.de

Valid Email Server
Domain Lookup › gruss-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gruss-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 16:12:36 UTC · ↺ Refresh

MX Hostnames

  • mx03.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx02.hornetsecurity.com
  • mx04.hornetsecurity.com

MX Priorities

  • mx04.hornetsecurity.com: 40
  • mx01.hornetsecurity.com: 10
  • mx03.hornetsecurity.com: 30
  • mx02.hornetsecurity.com: 20

A / AAAA Records

  • 217.160.0.81 ↩ 217-160-0-81.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::22e ↩ 2001-08d8-100f-f000-0000-0000-0000-022e.elastic-ssl.ui-r.com

Mail Server IPs

  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com
  • 94.100.136.8 ↩ mx02.hornetsecurity.com

SOA Record

Raw SOA ns1062.ui-dns.org hostmaster.1and1.com 2017021330 28800 7200 604800 300
Primary NS (mname)
ns1062.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017021330
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1062.ui-dns.org
ns1072.ui-dns.com
ns1123.ui-dns.biz
ns1114.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 mx a ip4:217.91.242.27 ip4:217.92.120.234 ip4:194.30.174.123 include:spf.eu.exclaimer.net include:spf.emailsignatures365.com include:amazonses.com include:spf.protection.outlook.com include:_spf.kundenserver.de include:spf.hornetsecurity.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • MS=ms76220447
  • SPFv=spf1 mx a ip4:217.91.242.27 ip4:217.92.120.234 ip4:194.30.174.123 include:spf.eu.exclaimer.net include:spf.emailsignatures365.com include:amazonses.com include:spf.protection.outlook.com include:_spf.kundenserver.de include:spf.hornetsecurity.com -all
  • MS=243CDFEC3596803A30FA84414DB44BE04CE1E64E
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