I send email with php. I am able to embed picture using cid. When I see the email in outlook on my pc, it look perfect. When I see the email on my iphone, it looks perfect, however with the embedded picture also as an attachment file.
However, when i forward the email to myself from from pc outlook, it arrives on my iphone looking perfect, but now without the attached picture, just the embedded picture. So absolutely perfect. So obviously it can be done to send embedded email with embedded picture to iphone without the picture showing up as attachment in addition to the embedded picture.
I will pay 20 USD for the fix.