ASP.NET中使用System.Net.Mail发邮件

public static void SendMail()//普通的邮件发送
{
MailAddress from = new MailAddress("FromEmail@website.com");
MailAddress to = new MailAddress("ToEmail@website.com");
MailMessage message = new MailMessage(from, to);
message.Subject = "邮件标题";
message.Body = "邮件内容";
MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com");
message.CC.Add(copy);
SmtpClient client = new SmtpClient("SMTP Server");

client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}

public static void SendMail()//带HTML的邮件发送
{
MailAddress from = new MailAddress("FromEmail@website.com");
MailAddress to = new MailAddress("ToEmail@website.com");
MailMessage message = new MailMessage(from, to);
message.Subject = "邮件标题";

string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容";
message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain"));
string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>";
htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a>";
AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html");
message.AlternateViews.Add(htmlBody);

MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com ");
message.CC.Add(copy);
SmtpClient client = new SmtpClient("SMTP Server");

client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}

public static void SendMail()//带HTML的邮件发送
{
MailAddress from = new MailAddress("FromEmail@website.com");
MailAddress to = new MailAddress("ToEmail@website.com");
MailMessage message = new MailMessage(from, to);
message.Subject = "邮件标题";

string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容";
message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain"));
string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>";
htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a>";
AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html");
message.AlternateViews.Add(htmlBody);

Attachment attachment = new Attachment("C:\\附件.rar");
message.Attachments.Add(attachment);

MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com");
message.CC.Add(copy);
SmtpClient client = new SmtpClient("SMTP Server");

client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}

public static void SendMail()//带HTML，并且HTML中有图片的邮件发送
{
MailAddress from = new MailAddress("FromEmail@website.com");
MailAddress to = new MailAddress("ToEmail@website.com");

MailMessage message = new MailMessage(from, to);
message.Subject = "邮件标题";

string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容";
message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain"));
string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>";
htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a><img src=\"cid:imageInEmail\"/>";
AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html");

LinkedResource lrImage = new LinkedResource("C:\\图片.jpg", System.Net.Mime.MediaTypeNames.Image.Jpeg);
lrImage.ContentId = "imageInEmail"; //此处的ContentId 对应 htmlBodyContent 内容中的 cid: ,如果设置不正确,请不会显示图片
htmlBody.LinkedResources.Add(lrImage);

message.AlternateViews.Add(htmlBody);

MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com");
message.CC.Add(copy);
SmtpClient client = new SmtpClient("SMTP Server");

client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}

public static void SendMail()//带HTML，并且HTML中有图片的邮件发送
{
MailAddress from = new MailAddress("FromEmail@website.com");
MailAddress to = new MailAddress("ToEmail@website.com");
MailMessage message = new MailMessage(from, to);
message.Subject = "邮件标题";

string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容";
message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain"));
string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>";
htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a><img src=\"cid:imageInEmail\"/>";
AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html");

MemoryStream imgStream = GetImage();
imgStream.Position = 0;//非常重要，否则图片为空！在邮件里显示红叉
LinkedResource lrImage = new LinkedResource(imgStream, System.Net.Mime.MediaTypeNames.Image.Jpeg);
lrImage.ContentId = "imageInEmail"; //此处的ContentId 对应 htmlBodyContent 内容中的 cid: ，如果设置不正确，请不会显示图片
htmlBody.LinkedResources.Add(lrImage);

message.AlternateViews.Add(htmlBody);

MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com");
message.CC.Add(copy);
SmtpClient client = new SmtpClient("SMTP Server");

client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}

public static MemoryStream GetImage()
{
//Code here... ...
}