https://github.com/nigelhorne/cmilter

A mail filter to block emails from countries from which you don't wish to receive e-mails
https://github.com/nigelhorne/cmilter

milter perl perl5 sendmail spam spam-filtering

Last synced: 1 day ago
JSON representation

A mail filter to block emails from countries from which you don't wish to receive e-mails

• Host: GitHub
• URL: https://github.com/nigelhorne/cmilter
• Owner: nigelhorne
• Created: 2012-08-24T12:20:12.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2025-01-19T16:07:41.000Z (11 days ago)
• Last Synced: 2025-01-19T16:23:33.257Z (11 days ago)
• Topics: milter, perl, perl5, sendmail, spam, spam-filtering
• Language: Perl
• Homepage:
• Size: 39.1 KB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
cmilter

=======

A mail milter to prevent e-mails from countries from which you don't wish to

receive e-mails.

It uses a combination of DNS resolution,

GeoIP databases,

and Whois lookups to determine the sender's country and applies a blacklist to block certain countries.

Before installing:

* modify the blacklist hash table in the source code

* install dependencies

        apt-get install libgeoip-dev

    or

        yum install perl-IPC-System-Simple perl-autodie perl-Data-Validate-IP

        yum install perl-Geo-IP perl-Net-Whois-IP perl-CHI

* choose your caching algorithm (look for $cache = in the source code)

* Install Sendmail::PMilter from CPAN, the other needed modules will be installed automatically

To install, simply put this script into /usr/local/etc/cmilter

Put this into /etc/mail/sendmail.mc:

    INPUT_MAIL_FILTER(`cmilter', `S=local:/var/run/cmilter, F=T, T=S:4m;R:4m')dnl

And run

    service sendmail restart

If you are using systemd, copy and paste this content into

/etc/systemd/system/cmilter.service

    [Unit]

    Description=Block e-mail by country

    After=network.target

    [Service]

    ExecStart=/usr/local/etc/cmilter local:/var/run/cmilter

    KillMode=process

    Restart=on-failure

    [Install]

    WantedBy=multi-user.target

Then run

    systemctl daemon-reload

    systemctl enable cmilter.service

    systemctl start cmilter.service

If you are not using systemd, put these into /etc/rc.local:

    rm -f /var/run/cmilter

    /usr/local/etc/cmilter local:/var/run/cmilter