Thanks for such a wonderfull document. But my concern is whatever attachments we are attaching through Service Page that is not going in mail. Is there any specific settingfs required for semding attachments which are attached through service pages.
You mentioned this is happening for all attachments, not just the ones coming from Service Pages.
When I asked how you cannot send them, you just said you need information on how to send them.
So, this is like going to the mechanic and saying "my car won't start" and when the mechanic asks you "what sound does the car make when you try to start it?", you reply: "I need to know how to start the engine". Not too helpful for the mechanic.
Did you actually go through the document, particularly the "Attachments with DB Rule" feature?
Anyhoo... assigning points to my previous replies will probably keep my interest in posting ideas.