Drafting IMAP emails with an attachment using PHP -

i'm trying add attachment emails draft cannot seem work. i've tried follow examples here , here without success.

here's i'm able far:

1. connect exchange server
2. open mailbox
3. draft html email
4. append email mailbox , have render html correctly. (when using text/html content-type). using else displays html plaintext.

as additional note, after being drafted, emails appended mailbox on exchange 2010 server , viewed sent via outlook 2010.

below mailer class , code draft email.

mailer.php

<?php  class mailer {     const user      =   'user';     const password  =   'pass';     const mailbox   =   '{conn}drafts';      // string order: $content-type . $from . $to . $cc . $subject . "\r\n\r\n" . $message     public $message;     public $imap_conn;     public $boundary;      function __construct()     {         // open message property can start appending strings.         $this->message = '';          // open imap connection         $this->imap_conn = imap_open(self::mailbox,self::user,self::password);     }      public function content_type($string_type)     {         $this->message .= "content-type:{$string_type}\r\n";     }      public function from($string_from)     {         $this->message .= "from:{$string_from}\r\n";     }      public function to($string_to)     {         $this->message .= "to:{$string_to}\r\n";     }      public function cc($string_cc)     {         $this->message .= "cc:{$string_cc}\r\n";     }      public function mime($float_mime_version)     {         $this->message .= "mime-version:{$float_mime_version}\r\n";     }      public function subject($string_subject)     {         $this->message .= "subject:{$string_subject}\r\n\r\n";     }      public function message($string_message)     {         $this->message .= "{$string_message}\r\n";     }      public function set_boundary($string_boundary)     {         $this->boundary = $string_boundary;     }      public function append()     {         imap_append($this->imap_conn,self::mailbox,$this->message,"\\draft");         imap_close($this->imap_conn);     } }  ?> 

draft code

// random hash used boundary $rh = md5(date('c',time())); $data = chunk_split(base64_encode('testing'));   $m = new mailer; $m->set_boundary('--php-mixed-' . $rh); $m->content_type('multipart/mixed; boundary="' . $m->boundary . '"'); $m->mime('1.0'); $m->from('from@mail.com'); $m->to('to@mail.com'); $m->cc('cc1@mail.com,cc2@mail.com'); $m->subject('a new email'); $m->message("     {$m->boundary}     content-type: text/html; charset=\"utf-8\"     content-transfer-encoding: base64      testing <b>html</b>     </br>     {$m->boundary}     content-type: application/octet-stream; name=\"test.txt\"     content-transfer-encoding: base64     content-disposition: attachment; filename=\"test.txt\"      {$data}     {$m->boundary}--     ")); $m->append(); 

the message before appended

content-type:multipart/mixed; boundary="--php-mixed-b408f941593cf92b5a8bd365abb4e64f" mime-version:1.0 from:from@mail.com to:to@mail.com cc:cc1@mail.com subject:new message               --php-mixed-b408f941593cf92b5a8bd365abb4e64f             content-type: text/html; charset="utf-8"             content-transfer-encoding: "base64"              <b>html</b> content                --php-mixed-b408f941593cf92b5a8bd365abb4e64f             content-type: application/octet-stream; name="test.txt"             content-transfer-encoding: base64             content-disposition: attachment; filename="test.txt"                --php-mixed-b408f941593cf92b5a8bd365abb4e64f-- 

it helpful have more information on debugging far. file being read successfully? make mailbox? me see output of full message before final append.

i not know if solve it, successful code , second example, message should have filename property, , values wrapped in quotes.

content-type: application/octet-stream; name="test.txt" content-transfer-encoding: base64 content-disposition: attachment; filename="test.txt"