techen.cn

Valid Email Server
Domain Lookup › techen.cn

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
techen.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 15:57:50 UTC · ↺ Refresh

MX Hostnames

  • techen-cn.corpsmtp.net
  • techen-cn.corpsmtp.cn
  • mail.biz-email.net
  • cnc.biz-email.net

MX Priorities

  • mail.biz-email.net: 3
  • cnc.biz-email.net: 4
  • techen-cn.corpsmtp.net: 1
  • techen-cn.corpsmtp.cn: 2

A / AAAA Records

  • 47.104.195.17

Mail Server IPs

  • 222.73.234.229 ↩ mail.biz-email.net
  • 222.73.234.236 ↩ mail.biz-email.net
  • 222.73.234.234 ↩ mail.biz-email.net
  • 210.51.26.150 (no PTR)
  • 210.51.26.140 (no PTR)
  • 159.100.25.64 ↩ dd-cn2-101.corpemail.net
  • 95.85.54.247 ↩ inbound-603.protection.corpemail.net
  • 47.74.183.245 ↩ sal604.corpemail.net
  • 188.166.26.239 ↩ inbound-602.protection.corpemail.net
  • 23.91.98.8 ↩ sal605.corpemail.net
  • 159.100.25.212
  • 159.100.25.163
  • 47.88.170.90
  • 47.88.156.124

SOA Record

Raw SOA ns11.xincache.com ns12.xincache.com 1767062459 3600 180 1209600 180
Primary NS (mname)
ns11.xincache.com
Admin Email (rname)
ns12@xincache.com
Serial
1767062459
Refresh
3600s
Retry
180s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns15.xincache.com
ns16.xincache.com

SPF Record

✓ Strict (-all)
v=spf1 include:_s.corp-email.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:_s.corp-email.com -all
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