zchwantech.com

Valid Email Server

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
zchwantech.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 13:51:11 UTC · ↺ Refresh

MX Hostnames

  • zchwantech-com.mail.protection.outlook.com

MX Priorities

  • zchwantech-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.6.113 (no PTR)
  • 172.67.134.194 (no PTR)
  • 2606:4700:3035::6815:671 (no PTR)
  • 2606:4700:3036::ac43:86c2 (no PTR)

Mail Server IPs

  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA alina.ns.cloudflare.com dns.cloudflare.com 2400358736 10000 2400 604800 1800
Primary NS (mname)
alina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400358736
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

alina.ns.cloudflare.com
benedict.ns.cloudflare.com

SPF Record

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

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

3 records
  • google-site-verification=ozAdAAos3E-6vCbpx55UI4UF9zcQMaELYKECYIo8sDw
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • apple-domain-verification=Tk24y1lPhAamBWWa
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