vstubos.com

Valid Email Server
Domain Lookup › vstubos.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
vstubos.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 23:47:12 UTC · ↺ Refresh

MX Hostnames

  • mxb-00163401.gslb.pphosted.com
  • mxa-00163401.gslb.pphosted.com

MX Priorities

  • mxb-00163401.gslb.pphosted.com: 5
  • mxa-00163401.gslb.pphosted.com: 5

A / AAAA Records

  • 200.243.40.186 (no PTR)

Mail Server IPs

  • 91.207.212.68 ↩ mx08-00163401.pphosted.com
  • 185.132.182.86 ↩ mx07-00163401.pphosted.com

SOA Record

Raw SOA ns-940.awsdns-53.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-940.awsdns-53.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-161.awsdns-20.com
ns-1961.awsdns-53.co.uk
ns-940.awsdns-53.net
ns-1413.awsdns-48.org

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

4 records
  • knowbe4-site-verification=99a51d779b0e9ef06bda80860d16b0e8
  • MS=ms21937525
  • ZIZia43FXxJ3qnnGrHsmVibL9zqBZM4MlVKLRygehkn2GXiwePbwEm0DuezxydYJy+FcmB6O7aGT8cTU8qy29w==
  • atlassian-domain-verification=tVXJU5QnmFazIylLKkzTkp4dyTyGyOLZSBve1xLkbv3gay3PtPGaBEOTR9hSeEfE
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