mvc upload file to second server code example
Example: ASP.NET MVC Two file upload, different destinations
<input type="file" multiple="multiple" name="files[0]" id="files_1" />
<input type="file" multiple="multiple" name="files[1]" id="files_2" />
<input type="file" multiple="multiple" name="files[2]" id="files_3" />
<input type="file" multiple="multiple" name="files[3]" id="files_4" />