c-a-s.de

Valid Email Server
Domain Lookup › c-a-s.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
c-a-s.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 06:00:09 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 185.148.170.174 ↩ ws01.hosting.digitly.de

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 ns2.nmmn.com root.c-a-s.de 2026030301 28800 7200 604800 86400
Primary NS (mname)
ns2.nmmn.com
Admin Email (rname)
root@c-a-s.de
Serial
2026030301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns3.nmmn.de
ns2.nmmn.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.emailsignatures365.com include:_spf.nmmn.com include:aspmx.pardot.com include:spf.hornetsecurity.com include:spf.protection.outlook.com +ip4:93.115.52.99 +ip4:194.49.64.10 +ip4:194.49.64.11 +ip4:109.75.179.103 +ip4:185.148.170.174 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate 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

13 records
  • openai-domain-verification=dv-KgP2oyk9ta1nueqZM5o92l0V
  • google-site-verification=divLIYYp7UNInEgyEu6t01TQqvVzH3uijHlT40DV6yk
  • atlassian-sending-domain-verification=7b9fb0f7-fb77-43d3-9322-77c6a1db60e7
  • _globalsign-domain-verification=irGfQ2Bh3yVO2ZCxpXT-9yaX8Eg2k19zMG1U2LMoAj
  • apple-domain-verification=z4PDtKcYw5FKm2yD
  • pardot913431=583aeee2bf6a09893fca5c657b4798f14fb778611ab8e28d6c59f65e2e3ce286
  • atlassian-domain-verification=H8T4qzw3EapB2am6fX73akx5tsjDEumB1ML3Y7/k/jWtTQcMi855GF1laf/zTxcx
  • _globalsign-domain-verification=adsUa0dO_OL1vvrr87RRme1hPUxWCilwsRCJy5IMPn
  • SPFv=spf1 include:spf.emailsignatures365.com include:_spf.nmmn.com include:aspmx.pardot.com include:spf.hornetsecurity.com include:spf.protection.outlook.com +ip4:93.115.52.99 +ip4:194.49.64.10 +ip4:194.49.64.11 +ip4:109.75.179.103 +ip4:185.148.170.174 ~all
  • a87c04a83dc70881d4308a4197e9caef37e8bb8f5784d0ae6d9fa0e9d23cfc90
  • docusign=a4522a9e-fd0d-4c74-b787-989101f28034
  • sending_domain913431=0ad189cefcc23d26593f2abeb334b3a3c30702b5d312a9158f72469510c6c015
  • MS=ms68412843
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