 <p>Something like this may get the job done:</p> <pre><code>&lt;?php function multi_attach_mail($to, $files, $sendermail){ // email fields: to, from, subject, and so on $from = "Files attach &lt;".$sendermail."&gt;"; $subject = date("d.M H:i")." F=".count($files); $message = date("Y.m.d H:i:s")."\n".count($files)." attachments"; $headers = "From: $from"; // boundary $semi_rand = md5(time()); $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; // headers for attachment $headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; // multipart boundary $message = "--{$mime_boundary}\n" . "Content-Type: text/plain; charset=\"iso-8859-1\"\n" . "Content-Transfer-Encoding: 7bit\n\n" . $message . "\n\n"; // preparing attachments for($i=0;$i&lt;count($files);$i++){ if(is_file($files[$i])){ $message .= "--{$mime_boundary}\n"; $fp = @fopen($files[$i],"rb"); $data = @fread($fp,filesize($files[$i])); @fclose($fp); $data = chunk_split(base64_encode($data)); $message .= "Content-Type: application/octet-stream; name=\"".basename($files[$i])."\"\n" . "Content-Description: ".basename($files[$i])."\n" . "Content-Disposition: attachment;\n" . " filename=\"".basename($files[$i])."\"; size=".filesize($files[$i]).";\n" . "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n"; } } $message .= "--{$mime_boundary}--"; $returnpath = "-f" . $sendermail; $ok = @mail($to, $subject, $message, $headers, $returnpath); if($ok){ return $i; } else { return 0; } } ?&gt; </code></pre> <p>I got that from the <a href="http://www.php.net/manual/en/function.mail.php" rel="nofollow">comments section of the mail function's page on php.net</a>. You can go there to see more examples of similar functions.</p>