Help on making email attachments

Hi folks. I'm having a heck of a time attaching a pdf file to an email 
using PHP.

The email goes where it's supposed to, the subject line is correct, and the 
from header works. But something about the way I'm using MIME does not make 
the POP3 (or whatever) server think there's an attachment.

For additional headers, I'm sending the following:

MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="b6af26a394300c80bb97cf63e62bbf15a768"

The content of the message follows. All lines in the message terminate with 
"\r\n".

I'd be very grateful if someone with better skills than mine took a look at 
the message MIME content and gave me their thoughts. Thanks!

Chris

MESSAGE CONTENT:

This is a MIME encoded message. If you are reading this, your email client 
does not support MIME. Please upgrade your email client.

--b6af26a394300c80bb97cf63e62bbf15a768

Content-Type: text/plain; charset="iso-8859-1"

Content-Transfer-Encoding: 7bit



The file you requested, blahblahblah.pdf, is attached.

Thank you for your business.

--b6af26a394300c80bb97cf63e62bbf15a768

Content-Type: application/pdf; name="blahblahblah.pdf"

Content-Transfer-Encoding: base64

Content-disposition: attachment; file="blahblahblah.pdf"



JVBERi0xLjINJeLjz9MNCjggMCBv ... <snip most of base64-encoded content> ... 
JlZg0KMTE2DQolJUVPRg0K



--b6af26a394300c80bb97cf63e62bbf15a768--