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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

βœ“MX record listing
βœ“Priority display
βœ“Mail server identification
βœ“IP resolution
βœ“Multiple MX records
βœ“TTL information

How to Use MX Lookup

1

Enter the domain name

2

Click Submit to lookup MX records

3

View mail servers and priorities

4

Check server configurations

Common Use Cases

β†’Email delivery troubleshooting
β†’Mail server configuration
β†’Email migration planning
β†’Domain email setup
β†’SPF/DKIM verification
β†’Email security audit

Tips & Best Practices

πŸ’‘

Lower MX priority numbers are tried first

πŸ’‘

Multiple MX records provide email redundancy

πŸ’‘

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.

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