Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
castell.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 16:35:44 UTC · ↺ Refresh
MX Hostnames
- mail.castell.de
MX Priorities
- mail.castell.de: 100
A / AAAA Records
- 82.212.215.2 ↩ shopware.isite.de
- 2a00:cb0:2:1::2 ↩ shopware.isite.de
Mail Server IPs
- 80.153.242.68 ↩ mail.castell.de
SOA Record
Raw SOA
ns81.domaincontrol.com dns.jomax.net 2025102400 28800 7200 604800 600
Primary NS (mname)
ns81.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025102400
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns81.domaincontrol.com
ns82.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:castell.de include:spf.protection.outlook.com include:spf-mailsrv.qualitycrew.de include:ispgateway.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms18121491
- SPFv=spf1 mx a:castell.de include:spf.protection.outlook.com include:spf-mailsrv.qualitycrew.de include:ispgateway.de -all
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