SpamD: Add DNSWL's legitimate SMTP servers to whitelist

[comrax]

Hello all.

I've written a small PHP script to fetch DNSWL's legitimate SMTP servers to SpamD's whitelist.
There are few steps to make in order for this to work, so here we go:

1. This has been tested on 1.2.1-RC3 (yes, it has been compiled tonight.)

2. Connect to pfSense using SSH shell as we need to add a new package.

3. Base pfSense don't include rsync command, so add it using: pkg_add -r rsync

4. Make a new directory (/usr/local/dnswl) and make it current directory (chdir).

5. Edit a new file (vi retrieve.php) and add the following code to it:

#!/usr/local/bin/php -f
        $script_dir = dirname(__FILE__);
        $tmp_dir = md5(time());
        mkdir($script_dir.'/'.$tmp_dir);
        exec('/usr/local/bin/rsync --times "rsync1.dnswl.org::dnswl/generic-dnswl" "'.$script_dir.'/'.$tmp_dir.'/"');
        if(file_exists($dnswl_path = $script_dir.'/'.$tmp_dir.'/generic-dnswl')) {
                $rptr = fopen($dnswl_path, 'r');
                $optr = fopen($script_dir.'/generic-dnswl', 'wb');
                if($rptr & $optr) {
                        while($line = fgets($rptr)) {
                                $line = trim($line);
                                if(!$line) {
                                        continue;
                                }
                                if('#' == $line{0}) {
                                        continue;
                                }
                                $semicolor_pos = strpos($line, ';');
                                $line = substr($line, 0, $semicolor_pos);
                                fputs($optr, $line."\n");
                        }
                }
        }

        @exec('/bin/rm -rf "'.$script_dir.'/'.$tmp_dir.'"');
        @readfile($script_dir.'/generic-dnswl');

?>

6. Go to (SpamD's External Sources) page, and click the [ + ] button to add a new entry.

7. Fill in the following settings in the input values:

• Provider Name: dnswl.org

• Provider Type: whitelist

• Provider Description: DNSWL.org provides a whitelist of known legitimate email servers to reduce the chances of false positives while spam filtering.

• Reject message: Your own message goes here

• Provider Method: Execute command

• Provider URL or Filename: /usr/local/dnswl/retrieve.php

Now, click the [ Save ] button to add the entry.

SpamD is able now to retrieve the list of legitimate SMTP servers, and add it automatically.

Enjoy!

[iced98lx]

Comrax: doing excellent work here!! I'm updating to RC3 just so i can use this and the other patch you released to SPAMD!!

Are you running greylisting or just white/black?