How to disable IPv6 for postfix service node?

Symptoms How to disable IPv6 on a Postfix Service Node? Resolution Enforcing Postfix to use IPv4 an be done by specifying inet_protocols parameter in configuration file: Open /etc/postfix/ with text editor (for example, vi) on the Postfix service node. Change inet_protocols value from inet_protocols = all to inet_protocols = ipv4. Restart Postfix service: # […]

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