Consider:
let body =  "Some text: www.google.co.in?q=1&q2=sdsdsds"
let urlString = "mailto:\(toEmail)?subject=\(subject.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)!)&body=\(body.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)!)"
Whenever the mail client opens, it strips the second parameter &q2=sdsdsds.. How can I fix this?
 
     
    