Alex,
I am getting back to this thread.
I apologize, the information previously provided was mistaken. The attachments are not being sent by email. They are being sent by a custom is-send.xpl the lofic for the send is as follows:
<property as="xs:string" debug="xxx form submit" name="oxf.fr.detail.process.is-send.*.*">
require-uploads
then validate-all
then save
then send(uri = "/fr/service/custom/orbeon/echo", content = "pdf-url", replace = "none")
then send(uri = "/fr/service/custom/rpic/is-send" , method = "post", replace = "none", nonrelevant = "keep")
then success-message("save-success")
then result-dialog
recover error-message("database-error")
</property>
As of right now, we have removed the images from the form I am attempting to setup a local environment to test this. However, it is still my understanding that the images were still being sent as a second attachment to the third party application