sylz.com.cn

Valid Email Server
Domain Lookup › sylz.com.cn

Domain Overview

DNS: ✓ 9h ago Checker: ✓ 9h ago
sylz.com.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-02 11:51:40 UTC · ↺ Refresh

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MX Hostnames

  • mxw.263.net
  • mx.263.net

MX Priorities

  • mx.263.net: 10
  • mxw.263.net: 5

A / AAAA Records

  • 104.21.74.170 (no PTR)
  • 172.67.160.82 (no PTR)
  • 2606:4700:3032::6815:4aaa (no PTR)
  • 2606:4700:3032::ac43:a052 (no PTR)

Mail Server IPs

  • 143.110.227.31 (no PTR)
  • 38.83.106.84 ↩ us-mx1.263.net
  • 38.83.106.85 ↩ us-mx2.263.net
  • 164.92.126.242 (no PTR)

SOA Record

Raw SOA lia.ns.cloudflare.com dns.cloudflare.com 2408217266 10000 2400 604800 1800
Primary NS (mname)
lia.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2408217266
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

lia.ns.cloudflare.com
noel.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.263.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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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