holste-gmbh.de

Valid Email Server
Domain Lookup › holste-gmbh.de

Domain Overview

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

Checked via [email protected] · 2026-03-26 15:01:02 UTC · ↺ Refresh

MX Hostnames

  • mx.viocom.de

MX Priorities

  • mx.viocom.de: 10

A / AAAA Records

  • 46.28.37.152 (no PTR)

Mail Server IPs

  • 46.28.37.183 ↩ vrz1-dmz-mx-3.viocom.de

SOA Record

Raw SOA ns1.ns-serve.net root.ns1.ns-serve.net 1773872325 10800 3600 604800 3600
Primary NS (mname)
ns1.ns-serve.net
Admin Email (rname)
root@ns1.ns-serve.net
Serial
1773872325
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.ns-serve.net
ns1.ns-serve.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf.viocom.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

1 record
  • SPFv=spf1 mx include:spf.viocom.de -all
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