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How to Use the MX Lookup Tool to Check Your Mail Server Records

How to Use the MX Lookup Tool to Check Your Mail Server Records

What is an MX Lookup?

An MX (Mail Exchange) lookup checks which mail server handles email for your domain. After adding your domain to Mailbux, your MX record must point to my.mailbux.com with priority 10.

How to Check Your MX Records

  1. Go to MX Lookup Tool
  2. Enter your domain name (e.g. yourdomain.com)
  3. Click Lookup

What Correct Results Look Like

PriorityMail ServerStatus
10my.mailbux.comCorrect

If you see a different mail server or no MX records, you need to update your DNS.

How to Fix Missing or Wrong MX Records

  1. Log into your domain registrar (GoDaddy, Cloudflare, Namecheap, etc.)
  2. Go to DNS Settings or DNS Management
  3. Delete any existing MX records
  4. Add a new MX record:
    • Type: MX
    • Host/Name: @ (or your domain)
    • Value/Points to: my.mailbux.com
    • Priority: 10
    • TTL: 3600 (or Auto)
  5. Save and wait 5-30 minutes for DNS propagation
  6. Run the MX Lookup again to confirm

Common Issues

  • Multiple MX records: Remove all others except my.mailbux.com
  • Wrong priority: Set to 10. Lower number = higher priority
  • Still showing old server: DNS can take up to 24 hours to propagate globally

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