I have a Asp.net Ajax website designed using AjaxControlToolkit and update panel. Inside update panel i have a button to send mail to the user on click of this button. My mail content has a big info with some attachments which takes more time to send mail. So i have to do this mailing process in background so that website will be responsive after clicking on send mail button. After sending mail i have to notify user of the mailing status.
Any suggesion is most welcome. Thanks in advance.