Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
agence-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:14:33 UTC · ↺ Refresh
MX Hostnames
- server.santesson.email
MX Priorities
- server.santesson.email: 10
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 78.47.126.142 ↩ server.santesson.email
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2024060403 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2024060403
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
helium.ns.hetzner.de
oxygen.ns.hetzner.com
hydrogen.ns.hetzner.com
SPF Record
✓ Strict (-all)
v=spf1 include:rm01.agence-koeln.de mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=7Xtm8Y70lAkXSfLcfQ-YwHBRXO9WEyi-hPOuaDmw3dM
- SPFv=spf1 include:rm01.agence-koeln.de mx -all
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