在 asp.net 中发送邮件-也使用 web config

Question

我正在尝试创建一个联系我们页面，用户单击提交并向我发送电子邮件，我查看了一些示例，但他们似乎将他们的电子邮件凭据硬编码到代码中，我发现安全 m 你可以将用户名和密码存储在 webconfig 文件中，下面是我的 web 配置代码和我的默认 aspx.cs 代码，谁能帮我解决问题，这是我得到的错误

无法解析远程名称：'smtp.gmail.com,587' 第 45 行：mailClient.Send(message);

这是我的应用设置和代码：

        <appSettings>
        <add key="PFUserName" value="myemail@gmail.com"/>
    <add key="PFPassWord" value="mypassword"/>
   <add key="MailServerName" value="smtp.gmail.com,587"/>
    </appSettings>


      using System;
   using System.Data;
   using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
      using System.Web.UI.WebControls.WebParts;
      using System.Web.UI.HtmlControls;
    using System.Net.Mail;
    using System.Web.Configuration;
  using System.Net;

 namespace WebApplication2 
        {
public partial class Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e)
    {
        SendMail(txtEmail.Text, txtComments.Text);
    }

    private void SendMail(string from, string body)
    {
        string Username = WebConfigurationManager.AppSettings["PFUserName"].ToString();
        string Password = WebConfigurationManager.AppSettings["PFPassWord"].ToString();
        string MailServer = WebConfigurationManager.AppSettings["MailServerName"].ToString();
        NetworkCredential cred = new NetworkCredential(Username, Password);
        string mailServerName = ("smtp.gmail.com,587");



        MailMessage message = new MailMessage(from, Username, "feedback", body);
        SmtpClient mailClient = new SmtpClient("smtp.gmail.com,587");
        mailClient.EnableSsl = true;

        mailClient.Host = mailServerName;
        mailClient.UseDefaultCredentials = false;
        mailClient.Credentials = cred;
        mailClient.Send(message);
        message.Dispose();

    }
}

}

Answer 1

您需要像这样在 web.config 中的mailSettings 配置中设置 SMTP 设置

  <system.net>
    <mailSettings>
      <smtp deliveryMethod="Network" from="my@mail.com">
        <network host="smtp.gmail.com" port="587" userName="myemail@gmail.com" password="mypassword" />
      </smtp>
    </mailSettings>
  </system.net>

您的服务器名称是 smtp.gmail.com（从那里删除 587）。 587 是 smtp 使用的端口。所以把这个值放在主机属性中。

C#代码：

SmtpClient smtpClient = new SmtpClient();
MailMessage mailMessage = new MailMessage();

mailMessage.To.Add(new MailAddress("sender@mail.com"));
mailMessage.Subject = "mailSubject";
mailMessage.Body = "mailBody";

smtpClient.Send(mailMessage);

Answer 2

这是我目前在我的 Web Config 中使用的内容，并进行了一些明显的修改

<system.net>
    <mailSettings>
      <smtp deliveryMethod="Network" from="username@gmail.com">
        <network defaultCredentials="false" host="smtp.gmail.com" port="587" userName=username" password="xxxxxxxxxxxx" />
      </smtp>
    </mailSettings>
  </system.net>

在 CS 文件中

using System.Net.Mail;

和

    MailMessage myMessage = new MailMessage();
    //subject line
    myMessage.Subject = Your Subject;
    //whats going to be in the body
    myMessage.Body = Your Body Info;
    //who the message is from
    myMessage.From = (new MailAddress("Mail@Mail.com"));
    //who the message is to

    myMessage.To.Add(new MailAddress("Mail@Mail.com"));

    //sends the message
    SmtpClient mySmtpClient = new SmtpClient();
    mySmtpClient.Send(myMessage);

用于发送。

Answer 3

您的主机名应为“smtp.gmail.com”，然后将 mailClient.Port 设置为 587。

Answer 4

你为什么不编译一个类来制作一个dll？

好吧，我用这个代码，享受吧:)

MailMessage mail = new MailMessage();
try
{
mail.To.Add(destinatario); // where will send
mail.From = new MailAddress("email that will send", "how the email will be displayed");
mail.Subject = "";
mail.SubjectEncoding = System.Text.Encoding.UTF8;
mail.IsBodyHtml = true;

mail.Priority = MailPriority.High;

// mail body
mail.Body = "email body";

 // send email, dont change //
SmtpClient client = new SmtpClient();

client.Credentials = new System.Net.NetworkCredential("gmail account", "gmail pass"); // set 1 email of gmail and password
client.Port = 587; // gmail use this port
client.Host = "smtp.gmail.com"; //define the server that will send email
client.EnableSsl = true; //gmail work with Ssl

client.Send(mail);
mail.Dispose();
return true;
}
catch
{
mail.Dispose();
return false;
}

Answer 5

<configuration>
  <!-- Add the email settings to the <system.net> element -->
  <system.net>
    <mailSettings>
      <smtp>
        <network
             host="relayServerHostname"
             port="portNumber"
             userName="username"
             password="password" />
      </smtp>
    </mailSettings>
  </system.net>

  <system.web>
    ...
  </system.web>
</configuration>

上面是web.config，这里是后端代码：

using System.Net;
using System.Net.Mail;
using System.Drawing;
using System.Configuration;
using System.Data.SqlClient;
using System.Net.Configuration;

private void Email(string email, string pass, string customername)
{
     SmtpSection smtp = (SmtpSection)ConfigurationManager.GetSection("system.net/mailSettings/smtp");
     MailMessage mm = new MailMessage(smtp.Network.UserName,email);

     mm.Subject = "Thank you for Registering with us";
     mm.Body = string.Format("Dear {0},<br /><br />Thank you for Registering with <b> Us. </b><br /> Your UserID is <b>{1}</b> and Password is <b> {2} </b> <br /><br /><br /><br /><br /><b>Thanks, <br />The Ismara Team </b>", customername, email, pass);            
     mm.IsBodyHtml = true;

   try
   {            
     using (SmtpClient client = new SmtpClient())
   {
      client.Send(mm);
   }


  }
catch (Exception ex)
  {
     throw new Exception("Something went wrong while sending email !");                
   }
}

系统会自动从web.config获取smtp的详细信息