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What is MX Lookup?
Look up MX (Mail Exchange) records for any domain to find out which mail servers handle email delivery. Essential for email troubleshooting, verifying email configuration, and checking mail server priorities.
Key Features
How to Use MX Lookup
Enter the domain name
Click Submit to lookup MX records
View mail servers and priorities
Check server configurations
Common Use Cases
Tips & Best Practices
Lower MX priority numbers are tried first
Multiple MX records provide email redundancy
Check MX records when emails aren't being delivered
Frequently Asked Questions
What are MX records?
MX (Mail Exchange) records specify which mail servers accept incoming email for a domain and their priority order.
What does priority mean?
Lower numbers = higher priority. The mail server with the lowest priority number is tried first.
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MX Lookup is part of our Network tools collection at AllInAOne. Use our free online tools for all your network needs β no registration required.