sd.rub.de

Valid Email Server
Domain Lookup › sd.rub.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sd.rub.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 23:40:13 UTC · ↺ Refresh

MX Hostnames

  • mi.ruhr-uni-bochum.de

MX Priorities

  • mi.ruhr-uni-bochum.de: 0

A / AAAA Records

  • 134.147.28.10 ↩ sd.ruhr-uni-bochum.de
  • 134.147.229.68 ↩ autodiscover.sd.ruhr-uni-bochum.de
  • 134.147.28.18 ↩ forestdnszones.sd.ruhr-uni-bochum.de
  • 2002:8693:1c12::8693:1c12
  • 2002:8693:e544::8693:e544 (no PTR)

Mail Server IPs

  • 134.147.53.154 ↩ mx3.mail.ruhr-uni-bochum.de
  • 134.147.42.228 ↩ mx2.mail.ruhr-uni-bochum.de
  • 134.147.53.148 ↩ mx1.mail.ruhr-uni-bochum.de
  • 2a05:3e00:c:1001::8693:2ae4 ↩ mx2.mail.ruhr-uni-bochum.de
  • 2a05:3e00:8:1001::8693:3594 ↩ mx1.mail.ruhr-uni-bochum.de
  • 2a05:3e00:8:1001::8693:359a ↩ mx3.mail.ruhr-uni-bochum.de

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

No TXT records found.

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