ZF-3646: Automaticly add attachments for included images
Most common email clients do not show embeded images, unless the user allow that Therefore there should be some functionality which automaticly send embeded images as email attachments with correct headers. I believe this is worth to implement.
Programmer just passes $mail->setBodyHTML() and something like $mail->sendEmbededImagesAsAttachment() and all will be automaticly included in email as attachments with correct headers
working example with source code inside attachment