Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
jcsa.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 01:21:45 UTC · ↺ Refresh
MX Hostnames
- mx.jcsa.com
MX Priorities
- mx.jcsa.com: 100
A / AAAA Records
- 153.122.205.35 (no PTR)
Mail Server IPs
- 153.122.206.94 (no PTR)
SOA Record
Raw SOA
ns.namedserver.net root.namedserver.net 8 10800 1800 259200 1800
Primary NS (mname)
ns.namedserver.net
Admin Email (rname)
root@namedserver.net
Serial
8
Refresh
10800s
Retry
1800s
Expire
259200s
Minimum TTL
1800s
Nameservers (NS)
ns.namedserver.net
ns2.namedserver.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.shared-server.net include:spf.jcsa.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 include:_spf.shared-server.net include:spf.jcsa.com ~all
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