cs-systemhaus.de

Valid Email Server
Domain Lookup › cs-systemhaus.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cs-systemhaus.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 17:38:27 UTC · ↺ Refresh

MX Hostnames

  • mx.viocom.de
  • cssystemhaus-de0e.mail.protection.outlook.com

MX Priorities

  • mx.viocom.de: 10
  • cssystemhaus-de0e.mail.protection.outlook.com: 0

A / AAAA Records

  • 46.28.37.152 (no PTR)

Mail Server IPs

  • 46.28.37.183 ↩ vrz1-dmz-mx-3.viocom.de
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.ns-serve.net root.ns1.ns-serve.net 1771919805 10800 3600 604800 3600
Primary NS (mname)
ns1.ns-serve.net
Admin Email (rname)
root@ns1.ns-serve.net
Serial
1771919805
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

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

SPF Record

✓ Strict (-all)
v=spf1 include:spf.viocom.de include:spf.protection.outlook.com -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

3 records
  • google-site-verification=i5s17giwd-bOcFa2CmXkKhOalMg0bEZOftmJfL_rwpM
  • SPFv=spf1 include:spf.viocom.de include:spf.protection.outlook.com -all
  • MS=ms23873399
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