name : content_transfer_encoding.phpt --TEST-- Test empty Content-Transfer-Encoding on multipart messages --SKIPIF-- --FILE-- <?php include "Mail/mime.php"; $mime = new Mail_mime("\r\n"); $mime->setParam('text_encoding', 'quoted-printable'); $mime->setParam('html_encoding', 'quoted-printable'); $mime->setParam('head_encoding', 'quoted-printable'); // This specific order used to set Content-Transfer-Encoding: quoted-printable // which is invalid according to RFC 2045 on multipart messages $mime->setTXTBody('text'); $mime->headers(array('From' => 'from@domain.tld')); $mime->addAttachment('file.pdf', 'application/pdf', 'file.pdf', false, 'base64', 'inline'); echo $mime->txtHeaders(); list ($header, $body) = explode("\r\n\r\n", $mime->getMessage()); echo $header; ?> --EXPECTF-- MIME-Version: 1.0 From: from@domain.tld Content-Type: multipart/mixed; boundary="=_%x" MIME-Version: 1.0 From: from@domain.tld Content-Type: multipart/mixed; boundary="=_%x"