singularity-nls.com

Valid Email Server
Domain Lookup › singularity-nls.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
singularity-nls.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 10:07:15 UTC · ↺ Refresh

MX Hostnames

  • mx.ym.163.com

MX Priorities

  • mx.ym.163.com: 10

A / AAAA Records

  • 47.251.3.250 (no PTR)

Mail Server IPs

  • 111.124.200.35 (no PTR)

SOA Record

Raw SOA ns11.xincache.com ns12.xincache.com 1748678988 3600 180 1209600 180
Primary NS (mname)
ns11.xincache.com
Admin Email (rname)
ns12@xincache.com
Serial
1748678988
Refresh
3600s
Retry
180s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns11.xincache.com
ns12.xincache.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.163.com -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.163.com -all
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