net发送邮件1

用System.Web.Mail发送邮件，适用于.net1.1，.net2.0请用System.Net.Mail

先引用System.Web
1，发送简单邮件
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "[e-mail]";
mail.From = "[e-mail]";
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body";
SmtpMail.SmtpServer = "localhost";  //your real server goes here
SmtpMail.Send( mail );


[ VB.NET ]

Dim mail As New MailMessage()
mail.To = "[e-mail]"
mail.From = "[e-mail]"
mail.Subject = "this is a test email."
mail.Body = "this is my test email body"
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)

这里的smtpserver只能是那些不需要验证的smtp服务器，像126,sina,yahoo等等的邮箱，都需要验证，所以不能用。用这些邮箱发信后面会讲到


2，发送Html邮件
[ C# ]
MailMessage mail = new MailMessage();
mail.To = "[e-mail]";
mail.From = "[e-mail]";
mail.Subject = "this is a test email.";
mail.BodyFormat = MailFormat.Html;
mail.Body = "this is my test email body.<br><b>this part is in bold</b>";
SmtpMail.SmtpServer = "localhost";  //your real server goes here
SmtpMail.Send( mail );



[ VB.NET ]
Dim mail As New MailMessage()
mail.To = "[e-mail]"
mail.From = "[e-mail]"
mail.Subject = "this is a test email."
mail.BodyFormat = MailFormat.Html
mail.Body = "this is my test email body.<br><b>this part is in bold</b>"
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)


3,发送附件
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "[e-mail]";
mail.From = "[e-mail]";
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body.";
MailAttachment attachment = new MailAttachment( Server.MapPath( "test.txt" ) ); //create the attachment
mail.Attachments.Add( attachment );    //add the attachment
SmtpMail.SmtpServer = "localhost";  //your real server goes here
SmtpMail.Send( mail );


[ VB.NET ]

Dim mail As New MailMessage()
mail.To = "[e-mail]"
mail.From = "[e-mail]"
mail.Subject = "this is a test email."
mail.Body = "this is my test email body."
Dim attachment As New MailAttachment(Server.MapPath("test.txt")) 'create the attachment
mail.Attachments.Add(attachment) 'add the attachment
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)


4，修改发件人和收件人的名称
比如发件人的地址是[e-mail],我们用outlook收到信，From一栏里将直接显示[e-mail].
能不能在From一栏里显示友好一点的名字呢？
比如显示Tony Gong

方法如下：
[ C# ]
MailMessage mail = new MailMessage();
mail.To = ""John" <[e-mail]>";
mail.From = ""Tony Gong" <[e-mail]>";
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body.";
SmtpMail.SmtpServer = "localhost";  //your real server goes here
SmtpMail.Send( mail );

[ VB.NET ]
Dim mail As New MailMessage()
mail.To = """John"" <[e-mail]>"
mail.From = """Tony Gong"" <[e-mail]>"
mail.Subject = "this is a test email."
mail.Body = "this is my test email body."
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)

5,发送给多人
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "[e-mail];[e-mail];[e-mail]";
mail.From = "[e-mail]";
mail.Subject = "this is a test email.";
mail.Body = "this is my test email body.";
SmtpMail.SmtpServer = "localhost";  //your real server goes here
SmtpMail.Send( mail );

[ VB.NET ]

Dim mail As New MailMessage()
mail.To = "[e-mail];[e-mail];[e-mail]"
mail.From = "[e-mail]"
mail.Subject = "this is a test email."
mail.Body = "this is my test email body."
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)