Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jcnetwork.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 21:10:13 UTC · ↺ Refresh
MX Hostnames
- jcnetwork-de.mail.protection.outlook.com
MX Priorities
- jcnetwork-de.mail.protection.outlook.com: 0
A / AAAA Records
- 85.13.135.14 ↩ dd13108.kasserver.com
Mail Server IPs
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2510241027 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510241027
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns5.kasserver.com
ns6.kasserver.com
ns3.kas-dns-server.de
a-dns-service.de
SPF Record
✓ Strict (-all)
v=spf1 a mx mx:jcnetwork.de ip4:188.138.106.86 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s; pct=100; rf=afrf; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
3 records- google-site-verification=vCnHTV8BOjqIlEyRWZmgRsZ_jV2VX0KuTJ6U6D5QXRU
- apple-domain-verification=InCfsaXwXGE4Uhr8
- SPFv=spf1 a mx mx:jcnetwork.de ip4:188.138.106.86 include:spf.protection.outlook.com include:sendgrid.net -all
Full email verification for jcnetwork.de
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