Mad Mimi doesn’t support attachments because they can significantly hurt the ability of your emails to land in your recipients inbox instead of the spam folder. There are many cases of attachments being used to spread malware, so promotions that contain attachments are far more likely to be erroneously flagged as spam by ISP’s and email clients.
As an alternative to including attachments directly to your promotion, we recommend storing your file somewhere online (such as your own website), then including a download link to it inside your promotion. You can add a regular text link, or if you’re feeling adventurous, we find that adding your link to an image that relates to the file being downloaded helps your recipients feel confident and secure in downloading.
If you can’t host the file on your website, you might try a service like Digioh. Digioh integrates with Mad Mimi. So you can upload your file and automatically generate a clickable download link in your Mad Mimi promotions :)