C# 雷鸟不'；t在电子邮件中显示嵌入的图像

我使用以下代码（C#）将图像嵌入html电子邮件：

Bitmap image = new Bitmap();
// set something to image
MemoryStream ms = new MemoryStream();
image.Save(ms, ImageFormat.Jpeg);
ContentType contentType = new ContentType(MediaTypeNames.Image.Jpeg);
ms.Seek(0, SeekOrigin.Begin);
Attachment attachment = new Attachment(ms, contentType);
attachment.ContentId = "image@email";

MailMessage mail = new MailMessage();
mail.From = new MailAddress("...");
mail.To.Add("...");
mail.Subject = "...";
mail.Body = body; // view below
mail.IsBodyHtml = true;
mail.Attachments.Add(attachment);
smtpClient.Send(mail);
ms.Close();

AlternateView view = AlternateView.CreateAlternateViewFromString(body, null, MediaTypeNames.Text.Html);
LinkedResource inline = new LinkedResource(filename, MediaTypeNames.Image.Jpeg);
inline.ContentId = "image@email";
view.LinkedResources.Add(inline);

MailMessage mail = new MailMessage();
mail.From = new MailAddress(username);
mail.To.Add(address);
mail.Subject = subject;
mail.IsBodyHtml = true;
mail.AlternateViews.Add(view);
await smtpClient.SendMailAsync(mail);

这里是html正文的相关部分：

<img align='center' alt='' src='cid:image@email' width='100' style='padding-bottom: 0; display: inline !important; vertical-align: bottom;'>";            

---

Thunderbird仍然拒绝在html中显示它。

正如Scarnet指出的，这是将嵌入图像放入html电子邮件的正确方法：

Bitmap image = new Bitmap();
// set something to image
MemoryStream ms = new MemoryStream();
image.Save(ms, ImageFormat.Jpeg);
ContentType contentType = new ContentType(MediaTypeNames.Image.Jpeg);
ms.Seek(0, SeekOrigin.Begin);
Attachment attachment = new Attachment(ms, contentType);
attachment.ContentId = "image@email";

MailMessage mail = new MailMessage();
mail.From = new MailAddress("...");
mail.To.Add("...");
mail.Subject = "...";
mail.Body = body; // view below
mail.IsBodyHtml = true;
mail.Attachments.Add(attachment);
smtpClient.Send(mail);
ms.Close();

AlternateView view = AlternateView.CreateAlternateViewFromString(body, null, MediaTypeNames.Text.Html);
LinkedResource inline = new LinkedResource(filename, MediaTypeNames.Image.Jpeg);
inline.ContentId = "image@email";
view.LinkedResources.Add(inline);

MailMessage mail = new MailMessage();
mail.From = new MailAddress(username);
mail.To.Add(address);
mail.Subject = subject;
mail.IsBodyHtml = true;
mail.AlternateViews.Add(view);
await smtpClient.SendMailAsync(mail);