postfwd is written in perl to combine complex postfix restrictions in a ruleset similar to those of the most firewalls. The program uses the postfix policy delegation protocol to control access to the mail system before a message has been accepted (please visit http://www.postfix.org/SMTPD_POLICY_README.html for more information). It allows you to choose an action (e.g. reject, dunno) for a combination of several smtp parameters (like sender and recipient address, size or the client's TLS fingerprint).
If you’re using a version of Linux with dnf:
$ dnf copr enable nunodias/Postfwd
you need to have dnf-plugins-core installed
or if you have older distribution:
$ yum copr enable nunodias/Postfwd
you need to have yum-plugin-copr installed
You can download a repo file and place it to /etc/yum.repos.d/
The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).
|Epel for CentOS 7||ppc64le (0)*, x86_64 (1)*||Epel for CentOS 7 (7 downloads)|
|Fedora 27||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora 27 (5 downloads)|
|Fedora 28||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora 28 (5 downloads)|
|Fedora 29||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora 29 (5 downloads)|
|Fedora rawhide||i386 (0)*, ppc64le (0)*, x86_64 (0)*||Fedora rawhide (5 downloads)|
|openSUSE Leap 15.0||x86_64 (0)*||openSUSE Leap 15.0 (5 downloads)|
|openSUSE Tumbleweed||i586 (0)*, ppc64le (0)*, x86_64 (0)*||openSUSE Tumbleweed (5 downloads)|
* Total number of packages downloaded in the last seven days.