alcu.de

Valid Email Server
Domain Lookup › alcu.de

Domain Overview

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

Checked via [email protected] · 2026-03-31 18:01:52 UTC · ↺ Refresh

MX Hostnames

  • mail.alcu.de

MX Priorities

  • mail.alcu.de: 10

A / AAAA Records

  • 92.51.134.214 ↩ it204.itnetcontent.de

Mail Server IPs

  • 92.51.134.214 ↩ it204.itnetcontent.de

SOA Record

Raw SOA ns1.ns46.com hostmaster.surfnetz.de 2019111200 43200 7200 1209600 86400
Primary NS (mname)
ns1.ns46.com
Admin Email (rname)
hostmaster@surfnetz.de
Serial
2019111200
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.ns46.com
ns4.ns46.com
ns3.ns46.com
ns2.ns46.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:92.51.134.214 ip6:2a01:488:66:1000:5c33:86d6:0:1 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

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

1 record
  • SPFv=spf1 ip4:92.51.134.214 ip6:2a01:488:66:1000:5c33:86d6:0:1 -all
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