在电子邮件中发送内联图片

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在电子邮件中发送内联图片

发送嵌入式图像邮件的过程中遇到问题。图像文件作为附件显示正常，但内联图像部分只显示为红色的X。

这是我目前的进展情况。

LinkedResource inline = new LinkedResource(filePath);
inline.ContentId = Guid.NewGuid().ToString();
MailMessage mail = new MailMessage();
Attachment att = new Attachment(filePath);
att.ContentDisposition.Inline = true;
mail.From = from_email;
mail.To.Add(data.email);
mail.Subject = "Client: " + data.client_id + " Has Sent You A Screenshot";
mail.Body = String.Format(
    "

Client: " + data.client_id + " Has Sent You A Screenshot

" + @"", inline.ContentId); mail.IsBodyHtml = true; mail.Attachments.Add(att);

admin 更改状态以发布 2023年5月21日
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2 答案

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试试这个

 string htmlBody = "
Picture
";
 AlternateView avHtml = AlternateView.CreateAlternateViewFromString
    (htmlBody, null, MediaTypeNames.Text.Html);
 LinkedResource inline = new LinkedResource("filename.jpg", MediaTypeNames.Image.Jpeg);
 inline.ContentId = Guid.NewGuid().ToString();
 avHtml.LinkedResources.Add(inline);
 MailMessage mail = new MailMessage();
 mail.AlternateViews.Add(avHtml);
 Attachment att = new Attachment(filePath);
 att.ContentDisposition.Inline = true;
 mail.From = from_email;
 mail.To.Add(data.email);
 mail.Subject = "Client: " + data.client_id + " Has Sent You A Screenshot";
 mail.Body = String.Format(
            "
Client: " + data.client_id + " Has Sent You A Screenshot
" +
            @"", att.ContentId);
 mail.IsBodyHtml = true;
 mail.Attachments.Add(att);

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0 Comments

用于嵌入图像的一些最小的C#代码,可以是:

MailMessage mailWithImg = GetMailWithImg();
MySMTPClient.Send(mailWithImg); //* Set up your SMTPClient before!
private MailMessage GetMailWithImg() {
    MailMessage mail = new MailMessage();
    mail.IsBodyHtml = true;
    mail.AlternateViews.Add(GetEmbeddedImage("c:/image.png"));
    mail.From = new MailAddress("yourAddress@yourDomain");
    mail.To.Add("recipient@hisDomain");
    mail.Subject = "yourSubject";
    return mail;
}
private AlternateView GetEmbeddedImage(String filePath) {
    LinkedResource res = new LinkedResource(filePath);
    res.ContentId = Guid.NewGuid().ToString();
    string htmlBody = @"";
    AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
    alternateView.LinkedResources.Add(res);
    return alternateView;
}

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