Dari source file pospix lakukan sbb :
% make -f Makefile.init makefiles
% make tidy
% make
# mv /usr/sbin/sendmail /usr/sbin/sendmail.OFF
# mv /usr/bin/newaliases /usr/bin/newaliases.OFF
# mv /usr/bin/mailq /usr/bin/mailq.OFF
# chmod 755 /usr/sbin/sendmail.OFF /usr/bin/newaliases.OFF /usr/bin/mailq.OFF
/etc/passwd:
postfix:*:12345:12345:postfix:/no/where:/no/shell
/etc/group:
postfix:*:12345:
/etc/group:
postdrop:*:54321:
# make install (interactive version, first time install)
# make upgrade (non-interactive version, for upgrades)