Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heun.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 11:09:28 UTC · ↺ Refresh
MX Hostnames
- rhodey.upgra.it
MX Priorities
- rhodey.upgra.it: 10
A / AAAA Records
- 78.46.109.156 ↩ rhodey.upgra.it
Mail Server IPs
- 78.46.109.156 ↩ rhodey.upgra.it
- 2a01:4f8:121:204b::2 ↩ rhodey.upgra.it
SOA Record
Raw SOA
dns109.ovh.net tech.ovh.net 2025012604 86400 3600 3600000 60
Primary NS (mname)
dns109.ovh.net
Admin Email (rname)
tech@ovh.net
Serial
2025012604
Refresh
86400s
Retry
3600s
Expire
3600000s
Minimum TTL
60s
Nameservers (NS)
ns109.ovh.net
dns109.ovh.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip6:2a01:4f9:4a:4387::2 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 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
1 record- SPFv=spf1 mx ip6:2a01:4f9:4a:4387::2 -all
Full email verification for heun.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits