Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
horstmann-essen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 07:50:29 UTC · ↺ Refresh
MX Hostnames
- mailin.hera.de
MX Priorities
- mailin.hera.de: 10
A / AAAA Records
- 188.94.248.186 ↩ r323.agenturserver.it
Mail Server IPs
- 212.202.225.194 ↩ mailin.hera.de
- 212.60.233.206 ↩ mailin.hera.de
SOA Record
Raw SOA
ns1a.dodns.net dns.akd-data.de 2016031508 86400 7200 360000 172800
Primary NS (mname)
ns1a.dodns.net
Admin Email (rname)
dns@akd-data.de
Serial
2016031508
Refresh
86400s
Retry
7200s
Expire
360000s
Minimum TTL
172800s
Nameservers (NS)
ns1a.dodns.net
ns2a.dodns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx a:bfd01.hera.de a:bfd02.hera.de include:akd-data.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 a mx a:bfd01.hera.de a:bfd02.hera.de include:akd-data.de -all
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