| A/I Orange Book (1.0): An how-to for the realization of a resilient network of self-managed servers | ||
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Even if Postfix logs are anonymized by syslog configurations, some sensible information is still kept in the messages. To remove it, we need to edit off the Received header that includes the user IP from the messages sent through our SMTP servers.
To do that, we have to patch Postfix. A constantly updated version of the patched Postfix package for Debian can be downloaded by including the following line to the /etc/apt/sources.list file:
deb http://deb.riseup.net/debian/ unstable main