Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kst87.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 11:24:28 UTC · ↺ Refresh
MX Hostnames
- kallisto.jebens.it
MX Priorities
- kallisto.jebens.it: 10
A / AAAA Records
- 116.203.191.101 ↩ kallisto.jebens.it
- 2a01:4f8:c2c:b0::1 ↩ kallisto.jebens.it
Mail Server IPs
- 116.203.191.101 ↩ kallisto.jebens.it
- 2a01:4f8:c2c:b0::1 ↩ kallisto.jebens.it
SOA Record
Raw SOA
ns3.nsentry.de hostmaster.kst87.de 2017013000 43200 7200 1209600 86400
Primary NS (mname)
ns3.nsentry.de
Admin Email (rname)
hostmaster@kst87.de
Serial
2017013000
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns3.nsentry.de
ns4.nsentry.de
SPF Record
✓ Strict (-all)
v=spf1 mx a:kallisto.jebens.it -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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 mx a:kallisto.jebens.it -all
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