On 14.09.2010 04:51, Rob Sheldon wrote:
I struggled a bit with a strange "File upload failed!" error; I finally found the cause to be the following line in program/steps/mail/attachments.inc:
$attachment = $RCMAIL->plugins->exec_hook('upload_attachment', $attachment);
No such thing in current code, so you're using some old version or you're mixing files from different versions.