Issues with base64 encoding

[dragonrm]

Hi all,
I'm working on a small script to insert an attachment and an inline image to an email form. Everything works fine except for the fact that the attachments are corrupt. I'm sure this isn't just me.
here's the setup
RH8
php-4.2.2-8.0.5

using the following code

$data = chunk_split(base64_encode($data));

The data looks good to the eye but that means nothing.
TIA

Jason

[Weedpacket]

There must be more to your code than that.