Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mtb-karlsruhe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 03:49:28 UTC · ↺ Refresh
MX Hostnames
- mx02.mtb-karlsruhe.de
MX Priorities
- mx02.mtb-karlsruhe.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 95.216.222.8 ↩ srv4.mtb-karlsruhe.de
SOA Record
Raw SOA
ns1.first-ns.de hostmaster.mtb-karlsruhe.de 2026032600 7200 900 86400 300
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
hostmaster@mtb-karlsruhe.de
Serial
2026032600
Refresh
7200s
Retry
900s
Expire
86400s
Minimum TTL
300s
Nameservers (NS)
ns1.first-ns.de
robotns2.second-ns.de
robotns3.second-ns.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:88.198.93.164 ip4:88.198.138.6 ip6:2a01:4f8:c0c:576e::1 ip4:95.216.222.8 ip6:2a01:4f9:c011:28c7::1 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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=2VcOYLP6YyrTQHhP2SDZ_wnVUrhsuy9-9BMyWHlrPj8
- SPFv=spf1 mx ip4:88.198.93.164 ip4:88.198.138.6 ip6:2a01:4f8:c0c:576e::1 ip4:95.216.222.8 ip6:2a01:4f9:c011:28c7::1 -all
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