有没有办法在C#中使用MailMessage或任何类似的方法来设置电子邮件头像？

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

class Program
{
    static void Main(string[] args)
    {
        // 创建MailMessage对象
        MailMessage mail = new MailMessage();
        mail.From = new MailAddress("sender@example.com");
        mail.To.Add("recipient@example.com");
        mail.Subject = "Hello";
        mail.Body = "This is a test email.";

        // 创建LinkedResource对象并加载图片文件
        LinkedResource imageResource = new LinkedResource("path/to/image.jpg");
        imageResource.ContentId = "image1";

        // 创建AlternateView对象并添加嵌入式图片资源
        AlternateView alternateView = AlternateView.CreateAlternateViewFromString(mail.Body, null, MediaTypeNames.Text.Html);
        alternateView.LinkedResources.Add(imageResource);

        // 将AlternateView添加到MailMessage对象的AlternateViews集合中
        mail.AlternateViews.Add(alternateView);

        // 使用SmtpClient发送邮件
        SmtpClient smtpClient = new SmtpClient("smtp.example.com", 587);
        smtpClient.Credentials = new System.Net.NetworkCredential("username", "password");
        smtpClient.EnableSsl = true;
        smtpClient.Send(mail);
    }
}