[Solved] Unable to send E-mail with Attachment

According to http://msdn.microsoft.com/en-us/library/6sdktyws.aspx your Attachment constructor is trying to set the ContentType with the second parameter but you’re passing in a filename, are you sure that is correct? You should probably change that part to something like: ContentType contentType = // create suitable type here based on your file format Attachment attachment = new Attachment( … Read more