Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
copatec.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 13:41:29 UTC · ↺ Refresh
MX Hostnames
- mail.copatec.de
MX Priorities
- mail.copatec.de: 10
A / AAAA Records
- 23.88.18.230 ↩ docker-node-002.copatec.de
- 2a01:4f8:2220:159a::2 ↩ docker-node-002.copatec.de
Mail Server IPs
- 23.88.18.230 ↩ docker-node-002.copatec.de
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2025120500 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2025120500
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
oxygen.ns.hetzner.com
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:mail.copatec.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a:mail.copatec.de -all
Full email verification for copatec.de
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