Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
containerbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 19:55:37 UTC · ↺ Refresh
MX Hostnames
- prohub-mail.pro-hub.com
MX Priorities
- prohub-mail.pro-hub.com: 10
A / AAAA Records
- 185.237.67.28 ↩ r29121.agenturserver.it
Mail Server IPs
- 93.241.54.130 ↩ prohub-mail.pro-hub.com
SOA Record
Raw SOA
ns01.agenturserver.de support.mittwald.de 1701132749 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1701132749
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns01.agenturserver.co
ns01.agenturserver.de
ns01.agenturserver.it
SPF Record
✓ Strict (-all)
v=spf1 mx a include:agenturserver.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;aspf=r;adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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
1 record- SPFv=spf1 mx a include:agenturserver.de -all
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