Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
qdboson.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 08:24:17 UTC · ↺ Refresh
MX Hostnames
- mx.263.net
- mxw.263.net
MX Priorities
- mxw.263.net: 5
- mx.263.net: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 164.92.126.242 (no PTR)
- 143.110.227.31 (no PTR)
- 38.83.106.84 ↩ us-mx1.263.net
- 38.83.106.85 ↩ us-mx2.263.net
SOA Record
Raw SOA
dns.bizcn.com abuse.bizcn.com 14 28800 14400 14400 600
Primary NS (mname)
dns.bizcn.com
Admin Email (rname)
abuse@bizcn.com
Serial
14
Refresh
28800s
Retry
14400s
Expire
14400s
Minimum TTL
600s
Nameservers (NS)
ns8.cnmsn.net
ns7.cnmsn.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.263.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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.263.net -all
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