When you create a domain during the installation process, {product-name} checks to see if you have an MX record correctly configured for that domain. If it is not, an error is displayed suggesting that the domain name have an MX record configured in DNS.
To send and receive email, the {product-short} MTA must be configured in DNS with both A and MX records. For sending mail, the MTA uses DNS to resolve hostnames and email-routing information. To receive mail, the MX record must be configured correctly to route the message to the mail server.
During the installation process, {product-name} checks to see if you have an MX record correctly configured. If it is not, an error is displayed suggesting that the domain name have an MX record configured in DNS.
You must configure a relay host if you do not enable DNS. After {product-name} is installed, go to the administration console's Global Settings>MTA tab and:
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Uncheck Enable DNS lookups.
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Enter the relay MTA address to use for external delivery.
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Note
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Even if a relay host is configured, an MX record is still required if the {product-name} server is going to receive email from the Internet. |