Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seubert-kollegen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 06:40:27 UTC · ↺ Refresh
MX Hostnames
- mail.carbacan.de
MX Priorities
- mail.carbacan.de: 10
A / AAAA Records
- 81.169.168.64 ↩ h3073162.stratoserver.net
Mail Server IPs
- 62.216.183.75 ↩ mail.carbacan.de
SOA Record
Raw SOA
ns1.rh-tec.com hostmaster.rh-tec.de 2025121217 40000 7200 604800 3600
Primary NS (mname)
ns1.rh-tec.com
Admin Email (rname)
hostmaster@rh-tec.de
Serial
2025121217
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.rh-tec.com
ns2.rh-tec.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a a:mail.carbacan.de ip4:62.216.183.75 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 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 mx a a:mail.carbacan.de ip4:62.216.183.75 ~all
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