.net發送郵件的一些技巧

2019-11-18 16:44:06

字體：大中小

來源：轉載

供稿：網友

用System.Web.Mail發送郵件，適用于.net1.1，.net2.0請用System.Net.Mail

先引用System.Web
1，發送簡單郵件
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "me@mycompany.com";
mail.From = "you@yourcompany.com";
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 = "me@mycompany.com"
mail.From = "you@yourcompany.com"
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)

這里的smtpserver只能是那些不需要驗證的smtp服務器，像126,sina,yahoo等等的郵箱，都需要驗證，所以不能用。用這些郵箱發信后面會講到


2，發送Html郵件
[ C# ]
 MailMessage mail = new MailMessage();
mail.To = "me@mycompany.com";
mail.From = "you@yourcompany.com";
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 = "me@mycompany.com"
mail.From = "you@yourcompany.com"
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,發送附件
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "me@mycompany.com";
mail.From = "you@yourcompany.com";
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 = "me@mycompany.com"
mail.From = "you@yourcompany.com"
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，修改發件人和收件人的名稱
比如發件人的地址是abc@126.com,我們用Outlook收到信，From一欄里將直接顯示abc@126.com.
能不能在From一欄里顯示友好一點的名字呢？
比如顯示Tony Gong

方法如下：
[ C# ]
 MailMessage mail = new MailMessage();
mail.To = "/"John/" <me@mycompany.com>";
mail.From = "/"Tony Gong/" <you@yourcompany.com>";
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"" <me@mycompany.com>"
mail.From = """Tony Gong"" <you@yourcompany.com>"
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,發送給多人
[ C# ]

MailMessage mail = new MailMessage();
mail.To = "me@mycompany.com;him@hiscompany.com;her@hercompany.com";
mail.From = "you@yourcompany.com";
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 = "me@mycompany.com;him@hiscompany.com;her@hercompany.com"
mail.From = "you@yourcompany.com"
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)

6，用需要Smtp驗證的郵箱發信
現在為了防止垃圾郵件，絕大部分Smtp服務器需要驗證了
發信方法如下：
[ C# ]

 MailMessage mail = new MailMessage();
 mail.To = "me@mycompany.com";
 mail.From = "abc@126.com";
 mail.Subject = "this is a test email.";
 mail.Body = "Some text goes here";
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //basic authentication
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "abc"); //set your username here
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassWord", "your password"); //set your password here

 SmtpMail.SmtpServer = "smtp.126.com";  //your real server goes here
 SmtpMail.Send( mail );

[ VB.NET ]


   Dim mail As New MailMessage()
   mail.To = "me@mycompany.com"
   mail.From = "abc@126.com"
   mail.Subject = "this is a test email."
   mail.Body = "Some text goes here"
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1") 'basic authentication
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "abc") 'set your username here
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "Your Password") 'set your password here
   SmtpMail.SmtpServer = "smtp.126.com" 'your real server goes here
   SmtpMail.Send(mail)



7,修改smtp服務器的端口，以及使用SSL加密
大部分smtp服務器的端口是25，但有些卻不是
同時，絕大部分Smtp服務器不需要SSL登陸，有些卻需要
比如Gmail，smtp端口是：465，同時支持SSL
代碼如下：

[ C# ]
 
 MailMessage mail = new MailMessage();
 mail.To = "me@mycompany.com";
 mail.From = "abc@126.com";
 mail.Subject = "this is a test email.";
 mail.Body = "Some text goes here";
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); //basic authentication
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "abc"); //set your username here
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "your password"); //set your password here
 
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport",465);
 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true");
 SmtpMail.SmtpServer = "smtp.126.com";  //your real server goes here
 SmtpMail.Send( mail );








 [ VB.NET ]
 

   Dim mail As New MailMessage()
   mail.To = "me@mycompany.com"
   mail.From = "abc@126.com"
   mail.Subject = "this is a test email."
   mail.Body = "Some text goes here"
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1") 'basic authentication
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "abc") 'set your username here
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "Your Password") 'set your password here
   
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport",465)
   mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true")

   SmtpMail.SmtpServer = "smtp.126.com" 'your real server goes here
   SmtpMail.Send(mail)