Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
der-he.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 15:10:42 UTC · ↺ Refresh
MX Hostnames
- mail.der-he.de
MX Priorities
- mail.der-he.de: 10
A / AAAA Records
- 188.68.35.236 ↩ mail.der-he.de
- 2a03:4000:10:608:101::5 (no PTR)
Mail Server IPs
- 188.68.35.236 ↩ mail.der-he.de
- 2a03:4000:10:608:107::2 ↩ mail.der-he.de
SOA Record
Raw SOA
root-dns.netcup.net dnsadmin.netcup.net 2025101895 28800 3600 1209600 3600
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2025101895
Refresh
28800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
second-dns.netcup.net
root-dns.netcup.net
third-dns.netcup.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:188.68.35.236 ip6:2a03:4000:10:608:101::7 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; adkim=r; aspf=r; sp=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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 ip4:188.68.35.236 ip6:2a03:4000:10:608:101::7 mx -all
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