Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kartonfabrik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 13:45:38 UTC · ↺ Refresh
MX Hostnames
- mx-a.secumail.de
- mx-b.secumail.de
MX Priorities
- mx-a.secumail.de: 10
- mx-b.secumail.de: 20
A / AAAA Records
- 217.160.0.177 ↩ 217-160-0-177.elastic-ssl.ui-r.com
Mail Server IPs
- 212.11.225.17 ↩ sc03.secumail.de
- 212.11.225.133 ↩ sc01.secumail.de
- 212.11.224.154 ↩ sc04.secumail.de
- 212.11.224.132 ↩ sc02.secumail.de
SOA Record
Raw SOA
ns1086.ui-dns.de hostmaster.schlund.de 2017030232 28800 7200 604800 300
Primary NS (mname)
ns1086.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2017030232
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1086.ui-dns.org
ns1086.ui-dns.com
ns1086.ui-dns.de
ns1086.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.secumail.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1:d:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.secumail.de include:spf.protection.outlook.com -all
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