In my project on click of a button I need to open outlook with send to, sent from and email body are filled. here is my code

var a = $("#emailLink");
        var emlBody =
            encodeURIComponent(result.data.EmailBody);

        var url = 'mailto:' + result.data.ClientEmail + '?subject=' + result.data.Subject + '&body=' + emlBody;
        $(a).attr("href", url);
        a[0].click();

body length goes beyond 2000 length, so i get this message

Launched external handler for 'client@mail.com?subject=a%20subject&body=a%20long%20message'.

how do i fix this, also how can i add text formatting to work in outlook