taishinholdings.com.tw

Valid Email Server
Domain Lookup › taishinholdings.com.tw

Domain Overview

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

Checked via [email protected] · 2026-04-03 19:18:51 UTC · ↺ Refresh

MX Hostnames

  • smtp3.taishinholdings.com.tw
  • smtp1.taishinholdings.com.tw
  • smtp2.taishinholdings.com.tw

MX Priorities

  • smtp2.taishinholdings.com.tw: 10
  • smtp3.taishinholdings.com.tw: 10
  • smtp1.taishinholdings.com.tw: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 202.6.105.6 ↩ c390.taishinbank.com.tw
  • 202.6.104.7 ↩ c395.taishinbank.com.tw
  • 202.6.104.6 ↩ c390-2.taishinbank.com.tw

SOA Record

Raw SOA extdns.taishinbank.com.tw norman.tseng.taishinbank.com.tw 224 900 600 2592000 300
Primary NS (mname)
extdns.taishinbank.com.tw
Admin Email (rname)
norman@tseng.taishinbank.com.tw
Serial
224
Refresh
900s
Retry
600s
Expire
2592000s
Minimum TTL
300s

Nameservers (NS)

extdns2.taishinbank.com.tw
extdns.taihsinbank.com.tw

SPF Record

✓ Strict (-all)
v=spf1 ip4:202.6.104.0/23 ip4:122.146.23.182 ip4:122.146.23.183 ip4:60.244.64.183 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=none; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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 ip4:202.6.104.0/23 ip4:122.146.23.182 ip4:122.146.23.183 ip4:60.244.64.183 -all
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