Adding Multuple images in an e-mail

hi ! I am sending e-mail with asp.net and I can add one image to this html body of this e-mail by using alternativeview. but here is the deal;
I need to add nearly 40 images of this e-mail and what is the best way to do that ? I know I can add the http links of the images but n some e-mail programs, it blocks the images when I do that. please show me the best way !
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