Postfix Hardening Guide for Security and Privacy

Postfix┬áSecurity and Privacy Postfix is one of the most used components on a server that needs to receive or send emails. With all its options available, it is easy to have a weak configuration. This security guide looks into Postfix hardening, to increase the defenses against spam, abuse, and leaking sensitive data. Time to start! Guide overview Why Postfix hardening Preparation Test the existing Postfix configuration Backup your Postfix configuration Find your Postfix version Hardening steps Basic hardening Disable VRFY […]

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