syncsci.com

Valid Email Server
Domain Lookup › syncsci.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
syncsci.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 06:39:09 UTC · ↺ Refresh

MX Hostnames

  • mxw.mxhichina.com
  • mxn.mxhichina.com

MX Priorities

  • mxw.mxhichina.com: 10
  • mxn.mxhichina.com: 5

A / AAAA Records

  • 8.222.164.206 (no PTR)

Mail Server IPs

  • 47.246.99.195 ↩ reachsmartdwell.com
  • 47.246.137.47 (no PTR)
  • 47.246.136.231 ↩ cz-clare.com

SOA Record

Raw SOA vip1.alidns.com hostmaster.hichina.com 2026010716 3600 1200 86400 600
Primary NS (mname)
vip1.alidns.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026010716
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s

Nameservers (NS)

vip2.alidns.com
vip1.alidns.com

SPF Record

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

✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • google-site-verification=AIZl_9gSH1yPp_84rQzkKHSbnKW3QD9ENOMTGbsyGVs
  • SPFv=spf1 include:spf.mxhichina.com -all
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