To send email attachments you need to make use of MIME (Multipurpose Internet Mail Extensions) - a mechanism that allows email to go beyond a basic, limited character set. MIME has many uses but for the purposes of this tutorial we will send a multipart/mixed MIME email; this means we can send a text email and attach a PDF file to it (for information on attaching other file types please see the end of this tutorial). The MIME side of things will be exaplined as we go.