optixxl.de

Valid Email Server
Domain Lookup › optixxl.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
optixxl.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 08:24:13 UTC · ↺ Refresh

MX Hostnames

  • optixxl-de.mail.eo.outlook.com

MX Priorities

  • optixxl-de.mail.eo.outlook.com: 0

A / AAAA Records

  • 85.13.152.14 ↩ dd16926.kasserver.com

Mail Server IPs

  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns5.kasserver.com hostmaster.kasserver.com 2601142119 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2601142119
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns6.kasserver.com
ns5.kasserver.com
ns5.name-server-kas.de
ns3.ai-dns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.crsend.com include:kasserver.com include:outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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 include:spf.protection.outlook.com include:spf.crsend.com include:kasserver.com include:outlook.com -all
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