student.uni-luebeck.de

Valid Email Server
Domain Lookup › student.uni-luebeck.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
student.uni-luebeck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 03:27:34 UTC · ↺ Refresh

MX Hostnames

  • ip1.rz.uni-luebeck.de
  • ip2.rz.uni-luebeck.de

MX Priorities

  • ip2.rz.uni-luebeck.de: 10
  • ip1.rz.uni-luebeck.de: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 141.83.100.72 ↩ ip2.rz.uni-luebeck.de
  • 141.83.100.71 ↩ ip1.rz.uni-luebeck.de

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Strict (-all)
v=spf1 +mx ip4:141.83.100.71/32 ip4:141.83.100.72/32 ip4:141.83.100.74/32 ip4:141.83.100.70/32 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • SPFv=spf1 +mx ip4:141.83.100.71/32 ip4:141.83.100.72/32 ip4:141.83.100.74/32 ip4:141.83.100.70/32 -all
  • academiccloud-site-verification=jyKQrEZXZ8n7Q6AMtZf7rDrfw
  • duo_sso_verification=oCDY0zrHgXkgxHL54XLNjPhnSx98XhprH1q6arekJXN1zxeJjR9aZp8jjRkfRo28
  • ciscocidomainverification=6c89490a7e8a7c73e486bc3c45ecc9f91ac2aac159e2d7067196b7f1c7255796
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