Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
boerner-racing.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 23:54:28 UTC · ↺ Refresh
MX Hostnames
- mail.rockenthien.com
MX Priorities
- mail.rockenthien.com: 10
A / AAAA Records
- 148.251.79.146 ↩ mail.rockenthien.com
- 2a01:4f8:202:4443::2 ↩ mail.rockenthien.com
Mail Server IPs
- 148.251.79.146 ↩ mail.rockenthien.com
- 2a01:4f8:202:4443::2 ↩ mail.rockenthien.com
SOA Record
Raw SOA
root-dns.netcup.net dnsadmin.netcup.net 2024060501 28800 7200 1209600 86400
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2024060501
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
third-dns.netcup.net
root-dns.netcup.net
second-dns.netcup.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=s;fo=1:d:s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 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 -all
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