Gửi mail trong ASP.NET Version 3

Bạn muốn gởi mail dạng PlainText hay Html, hãy sử dụng đoạn mã

//first we create the Plain Text part
AlternateView plainView = AlternateView.CreateAlternateViewFromString("This is my plain text content, viewable by those clients that don't support html", null, "text/plain");
//then we create the Html part
AlternateView htmlView = AlternateView.CreateAlternateViewFromString("this is bold text, and viewable by those mail clients that support html", null, "text/html");
mail.AlternateViews.Add(plainView);
mail.AlternateViews.Add(htmlView);

Chú ý: Bạn add kiểu nhìn nào thì nó sẽ hiển thị kiểu nhìn đó. Lấy giá trị sau cùng.


Còn nếu muốn chèn hình ảnh vào email thì làm như sau:

//To embed images, we need to use the prefix 'cid' in the img src value
//the cid value will map to the Content-Id of a Linked resource.
//thus  will map to a LinkedResource with a ContentId of 'myPicture'
Alternateview view = Alternateview.CreateAlternateviewFromString("Here is an embedded image.", null, "text/html");
//Create the LinkedResource
LinkedResource myPicture = new LinkedResource( "c:\\temp\\Picture.gif" );
logo.ContentId = "myPicture";
//Add the LinkedResource to the view
htmlview.LinkedResources.Add(myPicture);
mail.Alternateviews.Add(view); 

Giải thích: (Xin để tiếng Anh cho dễ hiểu)
The LinkedResource class is the last, and least used main class. It is mainly used for creating embedded images. To create an embedded image you will need to first create a Html formatted AlternateView. Within that alternate view you create an tag, that points to the ContentId (CID) of the LinkedResource. You then create a LinkedResource object and add it to the AlternateView's LinkedResources collection.
Tùy chỉnh trong Web.Config