Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rock-capital.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 12:22:40 UTC · ↺ Refresh
MX Hostnames
- rockcapital-de01b.mail.protection.outlook.com
MX Priorities
- rockcapital-de01b.mail.protection.outlook.com: 0
A / AAAA Records
- 185.237.65.168 ↩ r28823.agenturserver.it
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1107.ui-dns.biz hostmaster.1und1.de 2017032324 28800 7200 604800 300
Primary NS (mname)
ns1107.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017032324
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1107.ui-dns.org
ns1107.ui-dns.de
ns1107.ui-dns.biz
ns1107.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:80.147.47.3 include:spf.sendinblue.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 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
4 records- v=verifydomain MS=9397213
- SPFv=spf1 mx ip4:80.147.47.3 include:spf.sendinblue.com include:spf.protection.outlook.com -all
- Sendinblue-code:76907a704e92a309e7c61764b815c0b4
- brevo-code:632a2af9c53b52b4335721728eabac45
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