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MX Lookup Tool - Check your DNS MX Records online - MxToolbox
Check your domain's MX records, diagnose email delivery issues, and view blacklist status instantly with this easy online DNS lookup and diagnostic tool.
Instantly check and diagnose MX records online
MXToolbox is a handy online tool that lets you quickly check the MX (Mail Exchange) records for any domain. With just a few clicks, you can see how your email is routed and whether your domain is set up correctly for sending and receiving mail.
Beyond just listing MX records, the site offers helpful diagnostics to spot email delivery problems. You can test for open relays, check reverse DNS records, and see if your mail server appears on any major blacklists. This makes it especially useful if you're troubleshooting email issues or want to make sure your messages aren't being blocked.
Whether you're a business owner, IT professional, or just curious about your domain's email setup, MXToolbox provides clear, immediate answers to common mail server questions. It's a practical resource for keeping your email running smoothly.
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