Arch:
  policyd_spf_pkg: python-postfix-policyd-spf

Debian:
  policyd_spf_pkg: postfix-policyd-spf-python
  pcre_pkg: postfix-pcre
  mysql_pkg: postfix-mysql

FreeBSD:
  policyd_spf_pkg: py27-postfix-policyd-spf-python
  aliases_file: /etc/mail/aliases
  xbin_prefix: /usr/local
  config_path: /usr/local/etc/postfix
  root_grp: wheel
  dovecot_deliver: /usr/local/libexec/dovecot/deliver

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