code-alliance.de

Valid Email Server
Domain Lookup › code-alliance.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
code-alliance.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 20:52:36 UTC · ↺ Refresh

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MX Hostnames

  • mxext1.mailbox.org
  • mxext3.mailbox.org
  • mxext2.mailbox.org

MX Priorities

  • mxext2.mailbox.org: 10
  • mxext3.mailbox.org: 20
  • mxext1.mailbox.org: 10

A / AAAA Records

  • 91.99.3.18 ↩ static.18.3.99.91.clients.your-server.de
  • 2a01:4f8:c013:eba7::1 (no PTR)

Mail Server IPs

  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org
  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2026020502 600 600 3600000 300
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026020502
Refresh
600s
Retry
600s
Expire
3600000s
Minimum TTL
300s

Nameservers (NS)

robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.cahosting.de include:mailbox.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=quarantine; rua=mailto:dmarc-aggregatecode-alliance.decode-alliance.de
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:dmarc-aggregatecode-alliance.decode-alliance.de
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

4 records
  • google-site-verification=hEcs63nI8q0au-c8Puwj264la01Qf3QbC-QeueohZ9U
  • SPFv=spf1 include:_spf.cahosting.de include:mailbox.org ~all
  • google-site-verification=WQvthuNz6D77wG4EtJU-3TZa3uvvMI6YJXZ430FAy2Q
  • google-site-verification=gkd5IxcTzTZI7DMOBUIIafKesw0WQ2OpCBsh75xY5hk
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