C# 如何使用类（localhost）发送邮件？

电子邮件+附件（vCard）发送

我不知道我做错了什么，搜索了2天类似的问题，但没有关于Stackoverflow或Google的问题/解决方案符合我的描述

因为我写的代码不同

发送邮件+附件类：

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.Web.Configuration;
using System.Net.Mail;
using System.Net.Configuration;
using Compulutions.Net;
using Compulutions.Web;
using System.IO;
using System.Web.Mail;
using System.Collections.Generic;
using System.ComponentModel;
using System.Web.Services.Description;

// System.Web.Mail.SmtpMail.SmtpServer
// using System.Web.Mail.SmtpClient;


namespace vCardGenerator.Website
{
    public class SendvCard
    {
        public void MailvCard(string recipient, string filename)
        {
            Mailer smtp = new Mailer("localhost");

            /* SMTP - port 25 */

            smtp.AddAttachment(filename); //.vcf file Path
            smtp.FromAddress = new MailAddress ("random@mail.com");
            smtp.Subject = "vCard";
            smtp.MailBody = "Attachment is a vCard";
            smtp.AddRecipient(recipient);

#if !DEBUG
            try
            {
#endif
                smtp.SendMail();
#if !DEBUG
            }

            catch (Exception ex)
            {
                Response.Write("Exception Occured:   " + ex);
                    //Responds.Write("Sending vCard Failed! Please try again")
            }
#endif


            //  File.Delete(filename);

            //      vCard.vcf Delete after being send
                FileInfo DeleteFileInfo = new FileInfo(filename);

        /*  FileInfo DeleteFileInfo = new FileInfo("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf");
            if (DeleteFileInfo.Exists)
                File.Delete("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf"); */
        }
    }
}

protected void btnSend_Click(object sender, EventArgs e)
{
// Send mail with attachment
using (Attachment data = new Attachment("C:\\local\\vCardGenerator.Website\\" + "FirstName_LastName.vcf", MediaTypeNames.Application.Octet))
{

SendvCard smtp = new SendvCard();
}

lblStatus.Text = "Send to:" + " " + txtMail.Text;

FileInfo DeleteFileInfo = new FileInfo("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf");
if (DeleteFileInfo.Exists)
File.Delete("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" +".vcf");
  }
 }
}

按钮发送：

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.Web.Configuration;
using System.Net.Mail;
using System.Net.Configuration;
using Compulutions.Net;
using Compulutions.Web;
using System.IO;
using System.Web.Mail;
using System.Collections.Generic;
using System.ComponentModel;
using System.Web.Services.Description;

// System.Web.Mail.SmtpMail.SmtpServer
// using System.Web.Mail.SmtpClient;


namespace vCardGenerator.Website
{
    public class SendvCard
    {
        public void MailvCard(string recipient, string filename)
        {
            Mailer smtp = new Mailer("localhost");

            /* SMTP - port 25 */

            smtp.AddAttachment(filename); //.vcf file Path
            smtp.FromAddress = new MailAddress ("random@mail.com");
            smtp.Subject = "vCard";
            smtp.MailBody = "Attachment is a vCard";
            smtp.AddRecipient(recipient);

#if !DEBUG
            try
            {
#endif
                smtp.SendMail();
#if !DEBUG
            }

            catch (Exception ex)
            {
                Response.Write("Exception Occured:   " + ex);
                    //Responds.Write("Sending vCard Failed! Please try again")
            }
#endif


            //  File.Delete(filename);

            //      vCard.vcf Delete after being send
                FileInfo DeleteFileInfo = new FileInfo(filename);

        /*  FileInfo DeleteFileInfo = new FileInfo("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf");
            if (DeleteFileInfo.Exists)
                File.Delete("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf"); */
        }
    }
}

protected void btnSend_Click(object sender, EventArgs e)
{
// Send mail with attachment
using (Attachment data = new Attachment("C:\\local\\vCardGenerator.Website\\" + "FirstName_LastName.vcf", MediaTypeNames.Application.Octet))
{

SendvCard smtp = new SendvCard();
}

lblStatus.Text = "Send to:" + " " + txtMail.Text;

FileInfo DeleteFileInfo = new FileInfo("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" + ".vcf");
if (DeleteFileInfo.Exists)
File.Delete("C:\\local\\vCardGenerator.Website" + "\\" + "FirstName_LastName" +".vcf");
  }
 }
}

如果需要，愿意提供任何其他/更多信息。

试图得到专业人士的帮助，所以至少给我一个解决方案，在烧死我之前

真诚地，

---

绝望的生物。

看起来您只创建了一个

SendvCard

的实例，并且没有调用类

（MailvCard）

中的send方法

---

谢谢，我已经编辑过了。但是现在我的网页上的邮件设置出现了问题。config@Rafael-您必须就新问题发布新问题。请提供您收到的所有错误消息和web.config的副本。好的，我必须这样做。。谢谢（标记为已回答！）