MX Record
An MX (Mail Exchange) record is a DNS record that tells the internet which mail servers are responsible for accepting email on behalf of a domain. MX records include a priority value that determines the order servers are tried. When you send an email to user@example.com, the sending server looks up the MX record for example.com to find where to deliver the message.
MX Record Configuration
MX records point to mail server hostnames (not IP addresses) and include priority values:
example.com. MX 10 mail1.example.com.
example.com. MX 20 mail2.example.com.Lower priority values are tried first. If the server at priority 10 is unavailable, the sending server tries priority 20. You can verify your MX records using the Transmit DNS checker tool.
Related Terms
DNS Records for Email
Domain settings that control email routing and authentication (MX, SPF, DKIM, DMARC).
SPF (Sender Policy Framework)
Tells receiving servers which IPs can send email for your domain.
DKIM (DomainKeys Identified Mail)
Adds a digital signature to emails proving they haven't been tampered with.
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