Hi ASP.NET 3.5 I'm looking for ways to update images in already sent emails. I'm creating an email with an image which I host from my webserver. After the email is sent I update the image, then when I view the email again I see the old image. The reason for this is AFAIK caching. I came across this article: http://dotnetguts.blogspot.com/2009/05/how-to-remove-image-from-cache-when.html Which I have this example: Code: "~/Image/User5.jpg?" + DateTime.Now.ToString("ddyyhhmmss") But that example will not work for me, as that example contains ASP.NET, I'm instead looking for regular ways to solve it without using DateTime.Now in the tag. any ideas?