Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rhd-monitoring.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 23:18:28 UTC · ↺ Refresh
MX Hostnames
- mail.h1534.de
MX Priorities
- mail.h1534.de: 10
A / AAAA Records
- 91.98.84.183 ↩ server2.bcs-computersysteme.com
Mail Server IPs
- 178.254.24.180 ↩ mail.h1534.de
SOA Record
Raw SOA
dns1.nsdns.info tech.key-systems.net 2026011100 10800 3600 604800 28800
Primary NS (mname)
dns1.nsdns.info
Admin Email (rname)
tech@key-systems.net
Serial
2026011100
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
dns2.nsdns.info
dns1.nsdns.info
dns3.nsdns.info
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]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 250 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
2 records- google-site-verification=YE2AzmwsZFSQ4LW3ltI3yxc6Ql8srYv-Fh-YgfdpEJk
- SPFv=spf1 mx -all
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