sinmicro.com

Valid Email Server
Domain Lookup › sinmicro.com

Domain Overview

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

Checked via [email protected] · 2026-03-14 03:42:53 UTC · ↺ Refresh

MX Hostnames

  • mxw.263.net
  • mx.263.net

MX Priorities

  • mx.263.net: 10
  • mxw.263.net: 5

A / AAAA Records

  • 148.135.128.183 (no PTR)
  • 147.79.120.129 (no PTR)
  • 2a02:4780:4f:bd99:1a91:dd4c:7ced:a3b1 (no PTR)
  • 2a02:4780:51:1921:e1f:57df:3b86:efc7 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1.dns-parking.com dns.hostinger.com 2026031201 10000 2400 604800 600
Primary NS (mname)
ns1.dns-parking.com
Admin Email (rname)
dns@hostinger.com
Serial
2026031201
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1.dns-parking.com
ns2.dns-parking.com

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
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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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