邮件系列（二）-发送邮件

通过上一篇配置本地邮件服务器，已经实现了手动发送，接收邮件的功能。

接下来，我们就试试用代码实现发邮件。

我们都知道，邮件一般包括，发件人，收件人，邮件服务器，邮件。那么我们就按照这个思路来写代码

1.发送一封简单的邮件

private static void SendSimpleMail()

{

    //1.创建一封邮件对象

    MailMessage mail=new MailMessage();

    mail.Subject = "我是邮件的主题";

    mail.SubjectEncoding = Encoding.UTF8;

    mail.Body = "我是邮件的正文";

    mail.BodyEncoding = Encoding.UTF8;

    //发件人

    mail.From=new MailAddress([email protected],"李小四");

    //收件人

    mail.To.Add(new MailAddress([email protected],"王小五"));

    //2.创建一个发送邮件的类

    SmtpClient client=new SmtpClient("127.0.0.1");

    client.Credentials=new NetworkCredential("[email protected]","lisi");

    client.Send(mail);

    Console.WriteLine("ok");

}

在Foxmail中如下图

查看邮件源码

2.发送一封带html的邮件

private static void SendHtmlMail()

{

    //1.创建一封邮件对象

    MailMessage mail = new MailMessage();

    mail.Subject = "我是邮件的主题";

    mail.SubjectEncoding = Encoding.UTF8;

    mail.Body = "我是邮件的正文";

    mail.BodyEncoding = Encoding.UTF8;

    //发件人

    mail.From = new MailAddress("[email protected]", "李四");

    //收件人

    mail.To.Add(new MailAddress("[email protected]", "王五"));

    //-----------------------------------------------------------



    //设置该邮件的格式为html

    AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(

        "你好<font colof='red' size=7>中国</font><hr/>", null, "text/html");

    //将该html内容添加 到邮件中

    mail.AlternateViews.Add(htmlBody);



    //-----------------------------------------------------------

    //2.创建一个发送邮件的类

    SmtpClient client = new SmtpClient("127.0.0.1");

    client.Credentials = new NetworkCredential("[email protected]", "lisi");

    client.Send(mail);

    Console.WriteLine("ok");

}

在Foxmail中如下图

3.发送一封带显示图片的邮件

private static void SendMailWithImg()

{

    //1.创建一封邮件对象

    MailMessage mail = new MailMessage();

    mail.Subject = "我是邮件的主题";

    mail.SubjectEncoding = Encoding.UTF8;

    mail.Body = "我是邮件的正文";

    mail.BodyEncoding = Encoding.UTF8;

    //发件人

    mail.From = new MailAddress("[email protected]", "李四");

    //收件人

    mail.To.Add(new MailAddress("[email protected]", "王五"));

    //-----------------------------------------------------------

    //设置邮件格式为html，将img标签设置到html中

    AlternateView htmlBody =

       AlternateView.CreateAlternateViewFromString("<img src='cid:aa' width='100px' height='100px'/>", null,

           "text/html");

    //创建一个链接资源，

    LinkedResource lr=new LinkedResource("h:/1.jpg","image/gif");

    //设置此链接资源MIME内容ID

    lr.ContentId = "aa";

    //将该链接资源添加到html中

    htmlBody.LinkedResources.Add(lr);

    //将html内容添加到邮件中

    mail.AlternateViews.Add(htmlBody);



    //-----------------------------------------------------------

    //2.创建一个发送邮件的类

    SmtpClient client = new SmtpClient("127.0.0.1");

    client.Credentials = new NetworkCredential("[email protected]", "lisi");

    client.Send(mail);

    Console.WriteLine("ok");

}

在Foxmail中如下图

4.发送一封带附件的邮件

private static void SendMailWithAttachment()

{

    //1.创建一封邮件对象

    MailMessage mail = new MailMessage();

    mail.Subject = "我是邮件的主题";

    mail.SubjectEncoding = Encoding.UTF8;

    mail.Body = "我是邮件的正文";

    mail.BodyEncoding = Encoding.UTF8;

    //发件人

    mail.From = new MailAddress("[email protected]", "李四");

    //收件人

    mail.To.Add(new MailAddress("[email protected]", "王五"));

    //-----------------------------------------------------------

    //添加附件

    Attachment a1=new Attachment(@"h:/1.jpg");

    Attachment a2=new Attachment(@"h:/1.rar");

    Attachment a3=new Attachment(@"h:/1.docx");



    mail.Attachments.Add(a1);

    mail.Attachments.Add(a2);

    mail.Attachments.Add(a3);

    //-----------------------------------------------------------

    //2.创建一个发送邮件的类

    SmtpClient client = new SmtpClient("127.0.0.1");

    client.Credentials = new NetworkCredential("[email protected]", "lisi");

    client.Send(mail);

    Console.WriteLine("ok");

}

在Foxmail中如下图