mail.csc.com.tw

Valid Email Server
Domain Lookup › mail.csc.com.tw
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
mail.csc.com.tw
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-29 12:10:14 UTC · ↺ Refresh

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MX Hostnames

  • st2.mail.csc.com.tw

MX Priorities

  • st2.mail.csc.com.tw: 10

A / AAAA Records

  • 122.146.192.230 ↩ mail.csc.com.tw
  • 61.221.130.118 (no PTR)

Mail Server IPs

  • 61.221.130.106 (no PTR)
  • 122.146.192.212 ↩ st2.csc.com.tw

SOA Record

Raw SOA svr2.csc.com.tw admin.csc.com.tw 2025073104 900 600 86400 3600
Primary NS (mname)
svr2.csc.com.tw
Admin Email (rname)
admin@csc.com.tw
Serial
2025073104
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s

Nameservers (NS)

svr1.csc.com.tw
svr2.csc.com.tw
svr3.csc.com.tw
svr4.csc.com.tw

SPF Record

✓ Strict (-all)
v=spf1 ip4:122.146.192.229 ip4:61.221.130.123 include:csc.com.tw mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 1 found
default._domainkey
✓ DKIM properly configured for selector: default

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

All TXT Records

3 records
  • SPFv=spf1 ip4:122.146.192.229 ip4:61.221.130.123 include:csc.com.tw mx -all
  • google-site-verification=bxpZ8-On9F7ZVq7ZYjHCZpb094BpeT-459HVOgJU1PQ
  • yahoo-verification-key=dkMlg+5YIjl7PXdRE9x2eqVE3F8XGfQNmpZiQ0XduCk=
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