I am uploading images in my form. How do I display it in the sendmail?

I am uploading images in my form. How do I display it in the sendmail?

I Have a form with and RTF, and a file upload field in order to upload an image and also a single entry field in order to stored the following on the submit button:

a = "http://creatorexport.zoho.com/DownloadFile.do?" + input.Imagen + "&sharedBy=" + zoho.adminuser + "&appLinkName=" + zoho.appname + "&viewLinkName=Saludo_Navide_o_View";
input.imagelink = a;

Then  I have created a view  for this form.

Also I have another view which represents the  commercial contacts with their emails  and in that view I have a function in order to send a message plus the image uploaded in the previous form. The function basically have the sendmail

How Can embed on the sendmail the uploaded image?. 

I will appreciate the code sample, my problem is I can´t find in the sendmail how to embed the image.

Best Regards.