MX Record Lookup
Find the mail exchange servers responsible for accepting email for a domain and review their priority order.
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Results are generated on demand so you can verify the current public configuration.
What are MX Records?
MX (Mail Exchange) records are DNS records that specify which mail servers accept incoming
email for a domain. Each MX record has a priority value - lower numbers indicate higher
priority.
How Priority Works:
When sending email, the sending server tries the MX server with the lowest priority number
first. If that server is unavailable, it tries the next lowest, and so on.
Common Email Providers:
Different email providers have recognizable MX records. For example, Google Workspace uses
aspmx.l.google.com
, Microsoft 365 uses
*.mail.protection.outlook.com
.
What does an MX record lookup show? +
It shows the mail servers that accept inbound email for a domain and their priority values. Lower priority numbers are tried first.
Can a domain have multiple MX records? +
Yes. Multiple MX records are common for redundancy or hosted email services, and senders try them in priority order.
Do MX records affect outbound email deliverability? +
MX records mainly control inbound routing, but incorrect mail routing can still cause missed replies, verification failures, and operational issues.