Write some Software

have a data table on a page related to a specific meeting[People get signed in electronically] which has like five fields like First Name, Last Name, Phone, Email and Department. I need to have a button on that page "Send email to all participants" which in return open up a outlook new message instance with pre populate all the email addresses from the page data table [it goes from 1 - 500 email address depending on each meeting]. I was able to populate around 75-80 email address in outlook "to address field". But the mailto url has a limitation of 2000 character and now I got stuck. I want this functionality to be done using either in client side or on the server side .net MVC5 look object model. I have attached the sample code in the html file. You can actually run the demo to see how it works.