Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dibron.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 07:16:39 UTC · ↺ Refresh
MX Hostnames
- mail.dibron.de
MX Priorities
- mail.dibron.de: 0
A / AAAA Records
- 37.60.226.141 ↩ vmd186494.contaboserver.net
Mail Server IPs
- 37.60.226.141 ↩ vmd186494.contaboserver.net
SOA Record
Raw SOA
ns1.contabo.net hostmaster.contabo.de 1774250194 10800 3600 604800 3600
Primary NS (mname)
ns1.contabo.net
Admin Email (rname)
hostmaster@contabo.de
Serial
1774250194
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.contabo.net
ns1.contabo.net
ns3.contabo.net
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:37.60.226.141 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ip4:37.60.226.141 -all
Full email verification for dibron.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits