try changing lines 235 - 253:
if(sizeof($mailObj->attachments) > 0) {
foreach ($mailObj->attachments as $fileArr) {
if (is_readable($fileArr[3])) {
if (strtolower($fileArr[1]) == "base64") {
$data = chunk_split(base64_encode(implode("", file($fileArr[3]))));
}
else {
$data = implode("", file($fileArr[3]));
}
$mailAttachments .= $lineEnd."--WAMULTIBREAKWA";
$mailAttachments .= $lineEnd."Content-Type: ".$fileArr[0];
$mailAttachments .= "; name=\"".basename($fileArr[3])."\"".$lineEnd;
$mailAttachments .= "Content-Transfer-Encoding: ".$fileArr[1].$lineEnd;
$mailAttachments .= "Content-Disposition: inline;";
$mailAttachments .= " filename=\"".basename($fileArr[3])."\"".$lineEnd.$lineEnd;
$mailAttachments .= $data;
}
}
}
to:
if(sizeof($mailObj->attachments) > 0) {
foreach ($mailObj->attachments as $fileArr) {
if (is_readable($fileArr[3])) {
if (strtolower($fileArr[1]) == "base64") {
$data = chunk_split(base64_encode(implode("", file($fileArr[3]))));
}
else {
$data = implode("", file($fileArr[3]));
}
$mailAttachments .= $lineEnd."--WAMULTIBREAKWA";
$mailAttachments .= $lineEnd."Content-Type: ".$fileArr[0];
if ($fileArr[2] != "") {
$mailAttachments .= "; name=\"".basename($fileArr[2])."\"".$lineEnd;
}
else {
$mailAttachments .= "; name=\"".basename($fileArr[3])."\"".$lineEnd;
}
$mailAttachments .= "Content-Transfer-Encoding: ".$fileArr[1].$lineEnd;
$mailAttachments .= "Content-Disposition: inline;";
if ($fileArr[2] != "") {
$mailAttachments .= " filename=\"".basename($fileArr[2])."\"".$lineEnd.$lineEnd;
}
else {
$mailAttachments .= " filename=\"".basename($fileArr[3])."\"".$lineEnd.$lineEnd;
}
$mailAttachments .= $data;
}
}
}