robustan.com

Valid Email Server
Domain Lookup › robustan.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
robustan.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 12:07:34 UTC · ↺ Refresh

MX Hostnames

  • alf2.aspmx.whoisworks.com
  • aspmx.whoisworks.com
  • alf1.aspmx.whoisworks.com

MX Priorities

  • aspmx.whoisworks.com: 10
  • alf2.aspmx.whoisworks.com: 10
  • alf1.aspmx.whoisworks.com: 10

A / AAAA Records

  • 129.154.222.241 (no PTR)

Mail Server IPs

  • 193.123.252.198 ↩ filter00.whoisworks.com
  • 152.70.238.229 ↩ filter01.whoisworks.com

SOA Record

Raw SOA ns11.whois.co.kr root\@ns11.whois.co.kr 2008071700 3600 900 1209600 3600
Primary NS (mname)
ns11.whois.co.kr
Admin Email (rname)
root\@ns11@whois.co.kr
Serial
2008071700
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns11.whois.co.kr
ns11.whoisweb.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf1.whoisweb.net include:spf1.whoisworks.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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:spf1.whoisweb.net include:spf1.whoisworks.com ~all
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