I don't see anything obviously wrong in your sample, but after comparing your implementation with mine from a recent project, I see a couple of differences:
1. You mention using the mimemail module, but are you also using the mailsystem module? The simplest explanation would be that mimemail is not getting invoked at all. 2. If I recall correctly, some fields you can set in the "message" array upstream can get unset before hook_mail is called for you. So you may need to put these items into your "params" array and hammer them in as part of your hook_mail implementation. My code looks like this: Sending the mail: $mail_params = array( 'subject' => $settings['subject'], 'message' => $settings['message'], 'headers' => array( 'Content-Type' => 'text/html; charset=UTF-8' ), 'attachments' => $attachments, 'voter' => $credit_app, ); $mail_params['plain'] = FALSE; $mail_params['plaintext'] = $mail_params['message']; if (!empty($settings['bcc'])) { $mail_params['headers']['Bcc'] = $settings['bcc']; } $message = drupal_mail('mymodule', 'send-test', $address, $language, $mail_params, $from); In my hook_mail implementation: switch ($key) { case 'send-test': $message['subject'] = $params['subject']; $message['body'][] = $params['message']; $message['headers'] = array_merge($message['headers'], $params['headers']); break; } Note also that I'm setting some parameters that you are not setting ('plain', 'plaintext'); I believe I added those after debugging the problem you're having here. Hope this helps, Rob Rob Thorne Torenware Networks On Dec 29, 2013, at 12:50 PM, Muzaffer Tolga Ozses <to...@ozses.net> wrote: > Hi, > > I keep developing my module, and inside it I am sending e-mail. I am also > trying to attach a file, to no avail. I have installed mimemail, I have > changed mime type in my code, I have dpm'd everything. dpm gives me correct > values, and the subject and body of the e-mail come through, but I couldn't > get file attachment to work at all. What else can I do? > > Regards, > > PS: You can see the code at > http://drupalcode.org/sandbox/Kartagis/1543120.git/blob/da47378:/pass2pdf.module#l69 >