通过Gmail在.NET中发送电子邮件-Java 学习之路

780

我没有依赖我的主机发送电子邮件，而是考虑使用我的Gmail帐户发送电子邮件 . 这些电子邮件是我在节目中播放的乐队的个性化电子邮件 . 有可能吗？

22 回答

用这种方式

MailMessage sendmsg = new MailMessage(SendersAddress, ReceiversAddress, subject, body); 
SmtpClient client = new SmtpClient("smtp.gmail.com");

client.Port = Convert.ToInt32("587");
client.EnableSsl = true;
client.Credentials = new System.Net.NetworkCredential("mail-id@gmail.com","MyPassWord");
client.Send(sendmsg);

别忘掉这个：

using System.Net;
using System.Net.Mail;

回复于 2024-04-27T06:37:43+08:00

这是发送带附件的电子邮件..简单和简短..

来源：http://coding-issues.blogspot.in/2012/11/sending-email-with-attachments-from-c.html

using System.Net;
using System.Net.Mail;

public void email_send()
{
    MailMessage mail = new MailMessage();
    SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
    mail.From = new MailAddress("your mail@gmail.com");
    mail.To.Add("to_mail@gmail.com");
    mail.Subject = "Test Mail - 1";
    mail.Body = "mail with attachment";

    System.Net.Mail.Attachment attachment;
    attachment = new System.Net.Mail.Attachment("c:/textfile.txt");
    mail.Attachments.Add(attachment);

    SmtpServer.Port = 587;
    SmtpServer.Credentials = new System.Net.NetworkCredential("your mail@gmail.com", "your password");
    SmtpServer.EnableSsl = true;

    SmtpServer.Send(mail);

}

回复于 2024-04-27T06:37:43+08:00

7

http://www.systemnetmail.com/可能是一个专门用于单个.NET命名空间的最荒谬的完整站点......但是它有一些你想知道的关于通过.NET发送邮件的一切，无论是ASP.NET还是桌面 .

http://www.systemwebmail.com/是帖子中的原始URL，但不应用于.NET 2.0及更高版本 .

回复于 2024-04-27T06:37:43+08:00

如果您想发送背景电子邮件，请执行以下操作

public void SendEmail(string address, string subject, string message)
 {
 Thread threadSendMails;
 threadSendMails = new Thread(delegate()
    {

      //Place your Code here 

     });
  threadSendMails.IsBackground = true;
  threadSendMails.Start();
}

并添加命名空间

using System.Threading;

回复于 2024-04-27T06:37:43+08:00

这是我的版本：“Send Email In C # Using Gmail” .

using System;
using System.Net;
using System.Net.Mail;

namespace SendMailViaGmail
{
   class Program
   {
   static void Main(string[] args)
   {

      //Specify senders gmail address
      string SendersAddress = "Sendersaddress@gmail.com";
      //Specify The Address You want to sent Email To(can be any valid email address)
      string ReceiversAddress = "ReceiversAddress@yahoo.com";
      //Specify The password of gmial account u are using to sent mail(pw of sender@gmail.com)
      const string SendersPassword = "Password";
      //Write the subject of ur mail
      const string subject = "Testing";
      //Write the contents of your mail
      const string body = "Hi This Is my Mail From Gmail";

      try
      {
        //we will use Smtp client which allows us to send email using SMTP Protocol
        //i have specified the properties of SmtpClient smtp within{}
        //gmails smtp server name is smtp.gmail.com and port number is 587
        SmtpClient smtp = new SmtpClient
        {
           Host = "smtp.gmail.com",
           Port = 587,
           EnableSsl = true,
           DeliveryMethod = SmtpDeliveryMethod.Network,
           Credentials    = new NetworkCredential(SendersAddress, SendersPassword),
           Timeout = 3000
        };

        //MailMessage represents a mail message
        //it is 4 parameters(From,TO,subject,body)

        MailMessage message = new MailMessage(SendersAddress, ReceiversAddress, subject, body);
        /*WE use smtp sever we specified above to send the message(MailMessage message)*/

        smtp.Send(message);
        Console.WriteLine("Message Sent Successfully");
        Console.ReadKey();
     }

     catch (Exception ex)
     {
        Console.WriteLine(ex.Message);
        Console.ReadKey();
     }
    }
   }
 }

回复于 2024-04-27T06:37:43+08:00

以下是一种从web.config发送邮件和获取凭据的方法：

public static string SendEmail(string To, string Subject, string Msg, bool bodyHtml = false, bool test = false, Stream AttachmentStream = null, string AttachmentType = null, string AttachmentFileName = null)
{
    try
    {
        System.Net.Mail.MailMessage newMsg = new System.Net.Mail.MailMessage(System.Configuration.ConfigurationManager.AppSettings["mailCfg"], To, Subject, Msg);
        newMsg.BodyEncoding = System.Text.Encoding.UTF8;
        newMsg.HeadersEncoding = System.Text.Encoding.UTF8;
        newMsg.SubjectEncoding = System.Text.Encoding.UTF8;

        System.Net.Mail.SmtpClient smtpClient = new System.Net.Mail.SmtpClient();
        if (AttachmentStream != null && AttachmentType != null && AttachmentFileName != null)
        {
            System.Net.Mail.Attachment attachment = new System.Net.Mail.Attachment(AttachmentStream, AttachmentFileName);
            System.Net.Mime.ContentDisposition disposition = attachment.ContentDisposition;
            disposition.FileName = AttachmentFileName;
            disposition.DispositionType = System.Net.Mime.DispositionTypeNames.Attachment;

            newMsg.Attachments.Add(attachment);
        }
        if (test)
        {
            smtpClient.PickupDirectoryLocation = "C:\\TestEmail";
            smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.SpecifiedPickupDirectory;
        }
        else
        {
            //smtpClient.EnableSsl = true;
        }

        newMsg.IsBodyHtml = bodyHtml;
        smtpClient.Send(newMsg);
        return SENT_OK;
    }
    catch (Exception ex)
    {

        return "Error: " + ex.Message
             + "

Inner Exception: "
             + ex.InnerException;
    }

}

和web.config中的相应部分：

<appSettings>
    <add key="mailCfg" value="yourmail@example.com"/>
</appSettings>
<system.net>
  <mailSettings>
    <smtp deliveryMethod="Network" from="yourmail@example.com">
      <network defaultCredentials="false" host="mail.exapmple.com" userName="yourmail@example.com" password="your_password" port="25"/>
    </smtp>
  </mailSettings>
</system.net>

回复于 2024-04-27T06:37:43+08:00

15

为了让我能够工作，我必须启用我的Gmail帐户才能让其他应用程序获得访问权限 . 使用此链接使用"enable less secure apps"和 also 完成此操作：https://accounts.google.com/b/0/DisplayUnlockCaptcha

回复于 2024-04-27T06:37:43+08:00
1
Google可能阻止某些不使用现代安全标准的应用或设备尝试登录 . 由于这些应用和设备更容易入侵，因此阻止它们有助于确保您的帐户更安全 .

一些不支持最新安全标准的应用程序示例包括：
- 适用于iOS 6或更低版本的iPhone或iPad上的Mail应用程序
- 8.1版本之前Windows手机上的Mail应用程序
- 某些桌面邮件客户端，如Microsoft Outlook和Mozilla Thunderbird
因此，您必须在Google帐户中启用 Less Secure Sign-In .

登录Google帐户后，请转到：

https://myaccount.google.com/lesssecureapps
要么
https://www.google.com/settings/security/lesssecureapps

在C＃中，您可以使用以下代码：
```
using (MailMessage mail = new MailMessage())
{
    mail.From = new MailAddress("email@gmail.com");
    mail.To.Add("somebody@domain.com");
    mail.Subject = "Hello World";
    mail.Body = "<h1>Hello</h1>";
    mail.IsBodyHtml = true;
    mail.Attachments.Add(new Attachment("C:\\file.zip"));

    using (SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587))
    {
        smtp.Credentials = new NetworkCredential("email@gmail.com", "password");
        smtp.EnableSsl = true;
        smtp.Send(mail);
    }
}
```
回复于 2024-04-27T06:37:43+08:00

我希望这段代码能正常工作 . 你可以尝试一下 .

// Include this.                
using System.Net.Mail;

string fromAddress = "xyz@gmail.com";
string mailPassword = "*****";       // Mail id password from where mail will be sent.
string messageBody = "Write the body of the message here.";


// Create smtp connection.
SmtpClient client = new SmtpClient();
client.Port = 587;//outgoing port for the mail.
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
client.Timeout = 10000;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(fromAddress, mailPassword);


// Fill the mail form.
var send_mail = new MailMessage();

send_mail.IsBodyHtml = true;
//address from where mail will be sent.
send_mail.From = new MailAddress("from@gmail.com");
//address to which mail will be sent.           
send_mail.To.Add(new MailAddress("to@example.com");
//subject of the mail.
send_mail.Subject = "put any subject here";

send_mail.Body = messageBody;
client.Send(send_mail);

回复于 2024-04-27T06:37:43+08:00

980

试试这个，

private void button1_Click(object sender, EventArgs e)
    {
        try
        {
            MailMessage mail = new MailMessage();
            SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

            mail.From = new MailAddress("your_email_address@gmail.com");
            mail.To.Add("to_address");
            mail.Subject = "Test Mail";
            mail.Body = "This is for testing SMTP mail from GMAIL";

            SmtpServer.Port = 587;
            SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");
            SmtpServer.EnableSsl = true;

            SmtpServer.Send(mail);
            MessageBox.Show("mail Send");
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
    }

回复于 2024-04-27T06:37:43+08:00

请务必使用 System.Net.Mail ，而不是已弃用的 System.Web.Mail . 使用 System.Web.Mail 执行SSL是一个混乱的hacky扩展 .

using System.Net;
using System.Net.Mail;

var fromAddress = new MailAddress("from@gmail.com", "From Name");
var toAddress = new MailAddress("to@example.com", "To Name");
const string fromPassword = "fromPassword";
const string subject = "Subject";
const string body = "Body";

var smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    DeliveryMethod = SmtpDeliveryMethod.Network,
    UseDefaultCredentials = false,
    Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
{
    Subject = subject,
    Body = body
})
{
    smtp.Send(message);
}

回复于 2024-04-27T06:37:43+08:00

Source ：Send email in ASP.NET C#

下面是使用C＃发送邮件的示例工作代码，在下面的示例中，我使用的是谷歌的smtp服务器 .

代码非常自我解释，用您的电子邮件和密码值替换电子邮件和密码 .

public void SendEmail(string address, string subject, string message)
{
    string email = "yrshaikh.mail@gmail.com";
    string password = "put-your-GMAIL-password-here";

    var loginInfo = new NetworkCredential(email, password);
    var msg = new MailMessage();
    var smtpClient = new SmtpClient("smtp.gmail.com", 587);

    msg.From = new MailAddress(email);
    msg.To.Add(new MailAddress(address));
    msg.Subject = subject;
    msg.Body = message;
    msg.IsBodyHtml = true;

    smtpClient.EnableSsl = true;
    smtpClient.UseDefaultCredentials = false;
    smtpClient.Credentials = loginInfo;
    smtpClient.Send(msg);
}

回复于 2024-04-27T06:37:43+08:00

1

一个提示！检查发件人收件箱，也许您需要允许不太安全的应用 . 见：https://www.google.com/settings/security/lesssecureapps

回复于 2024-04-27T06:37:43+08:00
17
在Gmail / Outlook.com电子邮件中更改发件人：

为防止欺骗 - Gmail / Outlook.com不允许您从任意用户帐户名发送 .

如果您的发件人数量有限，则可以按照这些说明操作，然后将 From 字段设置为此地址：Sending mail from a different address

如果您想要从任意电子邮件地址（例如用户输入电子邮件的网站上的反馈表单，而您不希望他们直接通过电子邮件发送给您）发送关于您可以做的最好的信息：
```
msg.ReplyToList.Add(new System.Net.Mail.MailAddress(email, friendlyName));
```
这样您就可以在电子邮件帐户中点击“回复”，在反馈页面上回复您乐队的粉丝，但他们不会收到您的实际电子邮件，这可能会导致大量的垃圾邮件 .

如果您处于受控环境中这很好用，但请注意我已经看到一些电子邮件客户端发送到起始地址，即使指定了回复（我不知道哪个） .
回复于 2024-04-27T06:37:43+08:00

using System;
using System.Net;
using System.Net.Mail;

namespace SendMailViaGmail
{
   class Program
   {
   static void Main(string[] args)
   {

      //Specify senders gmail address
      string SendersAddress = "Sendersaddress@gmail.com";
      //Specify The Address You want to sent Email To(can be any valid email address)
      string ReceiversAddress = "ReceiversAddress@yahoo.com";
      //Specify The password of gmial account u are using to sent mail(pw of sender@gmail.com)
      const string SendersPassword = "Password";
      //Write the subject of ur mail
      const string subject = "Testing";
      //Write the contents of your mail
      const string body = "Hi This Is my Mail From Gmail";

      try
      {
        //we will use Smtp client which allows us to send email using SMTP Protocol
        //i have specified the properties of SmtpClient smtp within{}
        //gmails smtp server name is smtp.gmail.com and port number is 587
        SmtpClient smtp = new SmtpClient
        {
           Host = "smtp.gmail.com",
           Port = 587,
           EnableSsl = true,
           DeliveryMethod = SmtpDeliveryMethod.Network,
           Credentials = new NetworkCredential(SendersAddress, SendersPassword),
           Timeout = 3000
        };

        //MailMessage represents a mail message
        //it is 4 parameters(From,TO,subject,body)

        MailMessage message = new MailMessage(SendersAddress, ReceiversAddress, subject, body);
        /*WE use smtp sever we specified above to send the message(MailMessage message)*/

        smtp.Send(message);
        Console.WriteLine("Message Sent Successfully");
        Console.ReadKey();
     }
     catch (Exception ex)
     {
        Console.WriteLine(ex.Message);
        Console.ReadKey();
     }
}
}
}

回复于 2024-04-27T06:37:43+08:00

上述答案不起作用 . 您必须设置 DeliveryMethod = SmtpDeliveryMethod.Network ，否则它将返回“ client was not authenticated ”错误 . 暂停超时总是一个好主意 .

修改后的代码：

using System.Net.Mail;
using System.Net;

var fromAddress = new MailAddress("from@gmail.com", "From Name");
var toAddress = new MailAddress("to@yahoo.com", "To Name");
const string fromPassword = "password";
const string subject = "test";
const string body = "Hey now!!";

var smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    DeliveryMethod = SmtpDeliveryMethod.Network,
    Credentials = new NetworkCredential(fromAddress.Address, fromPassword),
    Timeout = 20000
};
using (var message = new MailMessage(fromAddress, toAddress)
{
    Subject = subject,
    Body = body
})
{
    smtp.Send(message);
}

回复于 2024-04-27T06:37:43+08:00

试试这个

public static bool Send(string receiverEmail, string ReceiverName, string subject, string body)
{
        MailMessage mailMessage = new MailMessage();
        MailAddress mailAddress = new MailAddress("abc@gmail.com", "Sender Name"); // abc@gmail.com = input Sender Email Address 
        mailMessage.From = mailAddress;
        mailAddress = new MailAddress(receiverEmail, ReceiverName);
        mailMessage.To.Add(mailAddress);
        mailMessage.Subject = subject;
        mailMessage.Body = body;
        mailMessage.IsBodyHtml = true;

        SmtpClient mailSender = new SmtpClient("smtp.gmail.com", 587)
        {
            EnableSsl = true,
            UseDefaultCredentials = false,
            DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network,
            Credentials = new NetworkCredential("abc@gmail.com", "pass")   // abc@gmail.com = input sender email address  
                                                                           //pass = sender email password
        };

        try
        {
            mailSender.Send(mailMessage);
            return true;
        }
        catch (SmtpFailedRecipientException ex)
        { }
        catch (SmtpException ex)
        { }
        finally
        {
            mailSender = null;
            mailMessage.Dispose();
        }
        return false;
}

回复于 2024-04-27T06:37:43+08:00

1

对我来说问题是我的 password had a blackslash "" ，我复制粘贴而没有意识到它会导致问题 .

回复于 2024-04-27T06:37:43+08:00
3

从another answer复制，上述方法有效但gmail始终用实际的发送gmail帐户替换"from"和"reply to"电子邮件 . 显然有一个工作：

http://karmic-development.blogspot.in/2013/10/send-email-from-aspnet-using-gmail-as.html

“3.在”帐户“标签中，单击”添加您拥有的其他电子邮件地址“链接，然后验证”

或者可能this

更新3：读者Derek Bennett说：“解决方案是进入你的Gmail设置：帐户和”默认“帐户而不是你的Gmail帐户 . 这将导致gmail用默认帐户的电子邮件重新写入”发件人“字段地址是 . “

回复于 2024-04-27T06:37:43+08:00
4

对于gmail帐户中的其他答案"from a server" first Turn On Access for less secure apps .

看起来最近谷歌改变了它的安全政策 . 评分最高的答案不再有效，直到您按照此处所述更改帐户设置：https://support.google.com/accounts/answer/6010255?hl=en-GB

As of March 2016, google changed the setting location again!

回复于 2024-04-27T06:37:43+08:00

包括这个，

using System.Net.Mail;

然后，

MailMessage sendmsg = new MailMessage(SendersAddress, ReceiversAddress, subject, body); 
SmtpClient client = new SmtpClient("smtp.gmail.com");

client.Port = Convert.ToInt16("587");
client.Credentials = new System.Net.NetworkCredential("mail-id@gmail.com","password");
client.EnableSsl = true;

client.Send(sendmsg);

回复于 2024-04-27T06:37:43+08:00

142

我有同样的问题，但它通过转到gmail的安全设置和 Allowing Less Secure apps 解决了 . Domenic＆Donny的代码可以使用，但前提是你启用了该设置

如果您已登录（对Google），则可以关注this链接并切换 "Turn on" 以获取 "Access for less secure apps"

回复于 2024-04-27T06:37:43+08:00

通过Gmail在.NET中发送电子邮件

22 回答

相关问题