How can Spamassassin be utilized to calculate spam rank and improve email deliverability in PHP?

Spamassassin can be utilized in PHP to calculate the spam rank of incoming emails and improve email deliverability by filtering out spam messages. By integrating Spamassassin into your email processing workflow, you can assign a spam score to each incoming email and take appropriate actions based on the score, such as moving suspected spam messages to a separate folder or flagging them for review. 

// Connect to Spamassassin server
$host = 'localhost';
$port = 783;
$socket = fsockopen($host, $port, $errno, $errstr, 30);

if (!$socket) {
    die("Error connecting to Spamassassin server: $errstr ($errno)");
}

// Send email content to Spamassassin for analysis
$emailContent = "Sample email content here";
fwrite($socket, "CHECK SPAMC/1.0\r\n");
fwrite($socket, "Content-length: " . strlen($emailContent) . "\r\n\r\n");
fwrite($socket, $emailContent);

// Get spam score from Spamassassin response
$spamScore = 0;
while ($line = fgets($socket)) {
    if (strpos($line, "Spam:") !== false) {
        $spamScore = (float) trim(str_replace("Spam: ", "", $line));
        break;
    }
}

// Close connection to Spamassassin server
fclose($socket);

// Take action based on spam score
if ($spamScore >= 5.0) {
    // Move email to spam folder
    // Or mark email as spam
} else {
    // Deliver email to inbox
}

Keywords

Spamassassin email deliverability PHP spam rank calculation

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