当需要在C#代码中实现邮件发送时,我们可以选择使用System.Net.Mail命名空间中的SmtpClient类和MailMessage类。以下是基本的实现步骤:
- 引入命名空间System.Net.Mail;
- 创建一个MailMessage对象,用于指定邮件的发送者、接收者、主题和正文等内容;
- 创建SmtpClient对象,用于连接SMTP服务器,并发送邮件;
- 配置SmtpClient对象的参数,例如SMTP服务器的地址、端口、身份验证信息等;
- 使用SmtpClient对象的Send方法,将MailMessage对象发送出去。
以下是两个示例,用于说明如何使用C#代码来发送邮件。
示例一:
using System;
using System.Net;
using System.Net.Mail;
namespace EmailSender
{
class Program
{
static void Main(string[] args)
{
// 配置邮件内容
string from = "sender@example.com";
string to = "recipient@example.com";
string subject = "Test Email";
string body = "This is a test email sent by C#.";
MailMessage mail = new MailMessage(from, to, subject, body);
// 创建SmtpClient对象
SmtpClient client = new SmtpClient("smtp.example.com", 25);
// 配置SmtpClient对象,例如SMTP服务器的账号和密码等
client.Credentials = new NetworkCredential("username", "password");
client.EnableSsl = true;
try
{
// 发送邮件
client.Send(mail);
Console.WriteLine("Email sent successfully!");
}
catch (Exception ex)
{
Console.WriteLine("Failed to send email: " + ex.Message);
}
}
}
}
示例二:
using System;
using System.Net;
using System.Net.Mail;
namespace EmailSender
{
class Program
{
static void Main(string[] args)
{
// 配置邮件内容
string from = "sender@example.com";
string to = "recipient@example.com";
string subject = "Test Email with Attachment";
string body = "This is a test email sent by C#, with an attachment.";
MailMessage mail = new MailMessage(from, to, subject, body);
// 添加附件
Attachment attachment = new Attachment(@"C:\Users\example.docx");
mail.Attachments.Add(attachment);
// 创建SmtpClient对象
SmtpClient client = new SmtpClient("smtp.example.com", 25);
// 配置SmtpClient对象,例如SMTP服务器的账号和密码等
client.Credentials = new NetworkCredential("username", "password");
try
{
// 发送邮件
client.Send(mail);
Console.WriteLine("Email sent successfully!");
}
catch (Exception ex)
{
Console.WriteLine("Failed to send email: " + ex.Message);
}
finally
{
// 释放附件的资源
attachment.Dispose();
}
}
}
}
以上两个示例仅仅是最基本的邮件发送,可以根据实际需求,添加更多的功能和参数来自定义邮件的发送。
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