在C#中发送自定义HTML格式邮件的示例详解

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

MailMessage mail = new MailMessage();
mail.From = new MailAddress("sender@example.com");
mail.To.Add("receiver@example.com");
mail.Subject = "这是邮件主题";

StringBuilder htmlBody = new StringBuilder();
htmlBody.Append("<h1>欢迎访问我们的网站</h1>");
htmlBody.Append("<p>请查看以下优惠信息：</p>");
htmlBody.Append("<ul>");
htmlBody.Append("<li>优惠一</li>");
htmlBody.Append("<li>优惠二</li>");
htmlBody.Append("</ul>");

AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlBody.ToString(), Encoding.UTF8, "text/html");
mail.AlternateViews.Add(alternateView);

SmtpClient smtp = new SmtpClient("smtp.example.com");
smtp.Credentials = new NetworkCredential("sender@example.com", "password");
smtp.Port = 587; // 根据你的SMTP服务器要求设置端口
smtp.EnableSsl = true;

try
{
    smtp.Send(mail);
    Console.WriteLine("邮件发送成功！");
}
catch (Exception ex)
{
    Console.WriteLine("邮件发送失败： " + ex.Message);
}

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

class EmailSender
{
    static void Main()
    {
        // 设置邮件服务器信息
        string smtpHost = "smtp.example.com";
        int smtpPort = 587;
        string smtpUsername = "your_username";
        string smtpPassword = "your_password";

        // 设置邮件信息
        string fromAddress = "sender@example.com";
        string toAddress = "receiver@example.com";
        string subject = "这是邮件主题";
        string htmlContent = "<h1>欢迎访问我们的网站</h1><p>请查看以下优惠信息：</p><ul><li>优惠一</li><li>优惠二</li></ul>";
        string signature = "最好的问候，你的团队。";

        // 创建邮件对象
        using (MailMessage mail = new MailMessage())
        {
            mail.From = new MailAddress(fromAddress);
            mail.To.Add(toAddress);
            mail.Subject = subject;

            // 设置HTML邮件正文
            AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlContent, Encoding.UTF8, "text/html");
            mail.AlternateViews.Add(alternateView);

            // 添加签名
            StringBuilder signatureHtml = new StringBuilder();
            signatureHtml.Append("<p>").Append(signature).Append("</p>");
            alternateView = AlternateView.CreateAlternateViewFromString(signatureHtml.ToString(), Encoding.UTF8, "text/html");
            mail.AlternateViews.Add(alternateView);

            // 配置SMTP服务器
            using (SmtpClient smtp = new SmtpClient(smtpHost, smtpPort))
            {
                smtp.Credentials = new NetworkCredential(smtpUsername, smtpPassword);
                smtp.EnableSsl = true;

                try
                {
                    // 发送邮件
                    smtp.Send(mail);
                    Console.WriteLine("邮件发送成功！");
                }
                catch (Exception ex)
                {
                    Console.WriteLine("邮件发送失败： " + ex.Message);
                }
            }
        }
    }
}