guug.de

Valid Email Server
Domain Lookup › guug.de

Domain Overview

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

Checked via [email protected] · 2026-03-31 01:05:54 UTC · ↺ Refresh

MX Hostnames

  • mx.guug.de

MX Priorities

  • mx.guug.de: 10

A / AAAA Records

  • 91.184.37.45 ↩ guug-v12.guug.de
  • 2a01:198:12::2d ↩ guug-v12.guug.de

Mail Server IPs

  • 91.184.37.36 ↩ mx.guug.de
  • 2a01:198:12::24 ↩ mx.guug.de

SOA Record

Raw SOA ns1.linuxtag.net hostmaster.guug.de 2026012601 3600 7200 1209600 600
Primary NS (mname)
ns1.linuxtag.net
Admin Email (rname)
hostmaster@guug.de
Serial
2026012601
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns1.linuxtag.net
ns2.guug.de
ns2.dnspartner.de

SPF Record

✓ Soft Fail (~all)
v=spf1 mx mx:linuxtag.org ?all
📊 DNS lookups: 2/10
? Neutral (?all) — no enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 mx mx:linuxtag.org ?all
  • _globalsign-domain-verification=b0kbg9XYe9XfJ7DFcWx7_6cJVGfVWvs9BeSQ0F8OyI
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