ec21.com

Valid Email Server
Domain Lookup › ec21.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ec21.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 04:50:47 UTC · ↺ Refresh

MX Hostnames

  • mailapp.hiworks.co.kr

MX Priorities

  • mailapp.hiworks.co.kr: 10

A / AAAA Records

  • 104.26.1.189 (no PTR)
  • 104.26.0.189 (no PTR)
  • 172.67.69.239 (no PTR)
  • 2606:4700:20::681a:bd (no PTR)
  • 2606:4700:20::681a:1bd (no PTR)
  • 2606:4700:20::ac43:45ef (no PTR)

Mail Server IPs

  • 121.254.168.55 ↩ mailapp.hiworks.co.kr
  • 211.47.76.59 ↩ mailapp.hiworks.co.kr
  • 45.120.71.59 ↩ mailapp.hiworks.co.kr

SOA Record

Raw SOA gemma.ns.cloudflare.com dns.cloudflare.com 2400323550 10000 2400 604800 1800
Primary NS (mname)
gemma.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400323550
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

gemma.ns.cloudflare.com
quincy.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:203.233.205.5 ip4:203.233.205.6 ip4:203.233.203.80 ip4:203.233.205.81 ip4:203.233.205.91 ip4:203.233.205.51 ip4:203.233.205.52 ip4:203.233.205.53 ip4:203.233.205.54 ip4:14.63.185.77 include:_spf.hiworks.co.kr ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

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

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

3 records
  • google-site-verification=cgAiaCCfOXYJnOdHNy0QtVOyYSAvMyjARMZ3Bvm-xxs
  • SPFv=spf1 ip4:203.233.205.5 ip4:203.233.205.6 ip4:203.233.203.80 ip4:203.233.205.81 ip4:203.233.205.91 ip4:203.233.205.51 ip4:203.233.205.52 ip4:203.233.205.53 ip4:203.233.205.54 ip4:14.63.185.77 include:_spf.hiworks.co.kr ~all
  • MS=413B6CC56B8B60EAD325E55196493F39017EA3AD
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