Debian:
  policyd_spf_pkg: postfix-policyd-spf-python
  postsrsd_pkg: postsrsd
  postgrey_pkg: postgrey
  pcre_pkg: postfix-pcre
  mysql_pkg: postfix-mysql

FreeBSD:
  config_dir: /usr/local/etc/postfix
  root_group: wheel

Gentoo:
  package: mail-mta/postfix
  policyd_spf_pkg: mail-filter/pypolicyd-spf
  postsrsd_pkg: mail-filter/postsrsd
  postgrey_pkg: mail-filter/postgrey
  aliases_file: /etc/mail/aliases

RedHat:
  policyd_spf_pkg: pypolicyd-spf
  postsrsd_pkg: postsrsd
  postgrey_pkg: postgrey

Arch:
  policyd_spf_pkg: python-postfix-policyd-spf
  postsrsd_pkg: postsrsd
  postgrey_pkg: postgrey