Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
institut-kuhlmann.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 07:43:03 UTC · ↺ Refresh
MX Hostnames
- mx02.twl-kom.de
- mx01.twl-kom.de
MX Priorities
- mx01.twl-kom.de: 10
- mx02.twl-kom.de: 10
A / AAAA Records
- 217.151.149.234 ↩ cp30450-001.twl-kom.de
Mail Server IPs
- 217.151.146.120 ↩ mx01.twl-kom.de
- 217.151.146.121 ↩ mx02.twl-kom.de
SOA Record
Raw SOA
swh01.twl-kom.de twladmin+swh01.rootmails.twl-kom.de 2026032903 3600 1800 1209600 86400
Primary NS (mname)
swh01.twl-kom.de
Admin Email (rname)
twladmin+swh01@rootmails.twl-kom.de
Serial
2026032903
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.twl-kom.de
swh01.twl-kom.de
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.10.195.102 a mx ip4:185.10.195.198 ip4:217.151.148.182 include:spf.twl-kom.de ~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: 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 ip4:185.10.195.102 a mx ip4:185.10.195.198 ip4:217.151.148.182 include:spf.twl-kom.de ~all
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