MX record
Mail exchange (MX) records tell the internet which servers receive email for a domain.
Email & DNS~1 min read
In plain English
It’s like the address book that tells the internet which “mailbox” (server) should receive emails for a domain like yourcompany.com.
An MX (Mail eXchange) record is a DNS record that specifies which mail servers are responsible for accepting email for a domain. When you send an email to user@example.com, the sender's server looks up the MX records for example.com to find where to deliver the message.
MX records have a priority value: lower numbers are preferred. If the primary mail server is unavailable, delivery is attempted to the next priority. Our email validator checks MX records to confirm that a domain can receive mail.
Examples & Usage
Typical MX Record Configuration
Priority: 10, Destination: mail.example.com
Priority: 20, Destination: backup-mail.example.comGoogle Workspace MX Records
1 ASPMX.L.GOOGLE.COM
5 ALT1.ASPMX.L.GOOGLE.COM
5 ALT2.ASPMX.L.GOOGLE.COM