Tsu*_*asa 95 c# email smtp inline image
通过电子邮件将图像作为嵌入图像发送到正文中时出现问题.图像文件显示为附件,但是内嵌图像部分显示为红色x.
这是我到目前为止所拥有的
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(
"<h3>Client: " + data.client_id + " Has Sent You A Screenshot</h3>" +
@"<img src=""cid:{0}"" />", inline.ContentId);
mail.IsBodyHtml = true;
mail.Attachments.Add(att);
T30*_*T30 138
嵌入图像的最小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 = @"<img src='cid:" + res.ContentId + @"'/>";
AlternateView alternateView = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
alternateView.LinkedResources.Add(res);
return alternateView;
}
Mic*_* DN 54
试试这个
string htmlBody = "<html><body><h1>Picture</h1><br><img src=\"cid:filename\"></body></html>";
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(
"<h3>Client: " + data.client_id + " Has Sent You A Screenshot</h3>" +
@"<img src=""cid:{0}"" />", att.ContentId);
mail.IsBodyHtml = true;
mail.Attachments.Add(att);
小智 9
protected void Page_Load(object sender, EventArgs e)
{
string Themessage = @"<html>
<body>
<table width=""100%"">
<tr>
<td style=""font-style:arial; color:maroon; font-weight:bold"">
Hi! <br>
<img src=cid:myImageID>
</td>
</tr>
</table>
</body>
</html>";
sendHtmlEmail("from@gmail.com", "tomailaccount", Themessage, "Scoutfoto", "Test HTML Email", "smtp.gmail.com", 25);
}
protected void sendHtmlEmail(string from_Email, string to_Email, string body, string from_Name, string Subject, string SMTP_IP, Int32 SMTP_Server_Port)
{
//create an instance of new mail message
MailMessage mail = new MailMessage();
//set the HTML format to true
mail.IsBodyHtml = true;
//create Alrternative HTML view
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(body, null, "text/html");
//Add Image
LinkedResource theEmailImage = new LinkedResource("E:\\IMG_3332.jpg");
theEmailImage.ContentId = "myImageID";
//Add the Image to the Alternate view
htmlView.LinkedResources.Add(theEmailImage);
//Add view to the Email Message
mail.AlternateViews.Add(htmlView);
//set the "from email" address and specify a friendly 'from' name
mail.From = new MailAddress(from_Email, from_Name);
//set the "to" email address
mail.To.Add(to_Email);
//set the Email subject
mail.Subject = Subject;
//set the SMTP info
System.Net.NetworkCredential cred = new System.Net.NetworkCredential("fromEmail@gmail.com", "fromEmail password");
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
smtp.EnableSsl = true;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.UseDefaultCredentials = false;
smtp.Credentials = cred;
//send the email
smtp.Send(mail);
}
除了上述评论之外，我还有以下补充评论：
"cid:att-001"但这不是在iPhone（后期2016补丁级别）工作，而用纯字母数字"cid:att-001" -> "cid:att001"顺便说一句：Outlook（甚至 Office 2015）呈现（对于企业用户仍然是绝大多数）需要使用 TABLE TR TD 样式的 HTML，因为它不完全支持 HTML 框模型。
一个更简约的例子：
var linkedResource = new LinkedResource(@"C:\Image.jpg", MediaTypeNames.Image.Jpeg);
// My mail provider would not accept an email with only an image, adding hello so that the content looks less suspicious.
var htmlBody = $"hello<img src=\"cid:{linkedResource.ContentId}\"/>";
var alternateView = AlternateView.CreateAlternateViewFromString(htmlBody, null, MediaTypeNames.Text.Html);
alternateView.LinkedResources.Add(linkedResource);
var mailMessage = new MailMessage
{
From = new MailAddress("youremail@host.com"),
To = { "recipient@host.com" },
Subject = "yourSubject",
AlternateViews = { alternateView }
};
var smtpClient = new SmtpClient();
smtpClient.Send(mailMessage);
小智 5
尝试这个。
protected void Page_Load(object sender, EventArgs e)
{
string Themessage = @"<html>
<body>
<table width=""100%"">
<tr>
<td style=""font-style:arial; color:maroon; font-weight:bold"">
Hi! <br>
<img src=cid:myImageID>
</td>
</tr>
</table>
</body>
</html>";
sendHtmlEmail("from@gmail.com", "tomailaccount", Themessage, "Scoutfoto", "Test HTML Email", "smtp.gmail.com", 25);
}
protected void sendHtmlEmail(string from_Email, string to_Email, string body, string from_Name, string Subject, string SMTP_IP, Int32 SMTP_Server_Port)
{
//create an instance of new mail message
MailMessage mail = new MailMessage();
//set the HTML format to true
mail.IsBodyHtml = true;
//create Alrternative HTML view
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(body, null, "text/html");
//Add Image
LinkedResource theEmailImage = new LinkedResource("E:\\IMG_3332.jpg");
theEmailImage.ContentId = "myImageID";
//Add the Image to the Alternate view
htmlView.LinkedResources.Add(theEmailImage);
//Add view to the Email Message
mail.AlternateViews.Add(htmlView);
//set the "from email" address and specify a friendly 'from' name
mail.From = new MailAddress(from_Email, from_Name);
//set the "to" email address
mail.To.Add(to_Email);
//set the Email subject
mail.Subject = Subject;
//set the SMTP info
System.Net.NetworkCredential cred = new System.Net.NetworkCredential("fromEmail@gmail.com", "fromEmail password");
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
smtp.EnableSsl = true;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.UseDefaultCredentials = false;
smtp.Credentials = cred;
//send the email
smtp.Send(mail);
}
小智 5
有关如何将多个图像嵌入到 HTML 电子邮件中的示例。请注意，如果您尝试使用较新的 HTML 元素（例如 flexbox），您将会遇到麻烦。如果你使用一个简单的表格就可以了。当我尝试使用 Flexbox 时，样式无法识别。
public static void Main(string[] args)
{
var html = File.ReadAllText("c:\test.html");
var altView = GetAlternateView(html);
SendEmail(new List<MailRecipients> {new MailAddress(someone@email.com)}, "Hello!", "Images in Email Test!", true, altView);
}
public static bool SendEmail(List<MailAddress> recipients, string body, string subject, bool html, AlternateView view, MailPriority priority = MailPriority.Normal)
{
try
{
MailMessage message = new MailMessage();
SmtpClient smtp = new SmtpClient();
message.From = new MailAddress(ConfigLookup.GetStringValue(ConfigNames.EmailFrom));
recipients.ForEach(r => message.To.Add(new MailAddress(r.Address)));
message.Subject = subject;
message.IsBodyHtml = html;
message.AlternateViews.Add(view);
message.Priority = priority;
smtp.Port = 25;
smtp.Host = youremailhost;
smtp.EnableSsl = yes;
smtp.UseDefaultCredentials = false;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.Send(message);
return true;
}
catch (Exception e)
{
return false;
}
}
private AlternateView GetAlternateView(string html)
{
var logoPath = ConfigLookup.GetStringValue(ConfigNames.LogoPath);
LinkedResource logoResource = new LinkedResource(logoPath);
// ContentID must match the 'cid:contentId' in the html
logoResource.ContentId = "logo";
// Without a Mime type the images will show up as attached .bin files
logoResource.ContentType = new ContentType("image/png");
logoResource.TransferEncoding = TransferEncoding.Base64;
var heroPath = ConfigLookup.GetStringValue(ConfigNames.HeroPath);
LinkedResource heroResource = new LinkedResource(heroPath);
// ContentID must match the 'cid:contentId' in the html
heroResource.ContentId = "hero";
// Without a Mime type the images will show up as attached .bin files
heroResource.ContentType = new ContentType("image/png");
heroResource.TransferEncoding = TransferEncoding.Base64;
AlternateView alternateView = AlternateView.CreateAlternateViewFromString(html, null, MediaTypeNames.Text.Html);
alternateView.LinkedResources.Add(logoResource);
alternateView.LinkedResources.Add(heroResource);
return alternateView;
}
在 Html 中，将图像链接到 LinkedResource 的主要内容是“cid:contentId”必须匹配：
<a href="https://somesite.com" target="_blank" style="color:#033254;">
<img src="cid:logo" width="218" alt="Company logo" style="max-width:100%;height:auto;" />
</a>
<a href="https://somesite.com" target="_blank" style="color:#033254;">
<img src="cid:hero" width="218" alt="Company hero" style="max-width:100%;height:auto;" />
</a>
完整的 HTML：
<!DOCTYPE html>
<html lang="en" xmlns="https://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="x-apple-disable-message-reformatting">
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Shipping Confirmation from Products Company</title>
</head>
<body style="margin:0;padding:0;word-spacing:normal;">
<div role="article" aria-roledescription="email" lang="en" style="-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;background-color:#ffffff;">
<table width="100%" align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" >
<tr>
<td align="center">
<div class="outer" style="width:96%;max-width:660px;margin:20px auto;background-color:#ffffff;">
<table role="presentation" width="100%" border="0" cellpadding="0" cellspacing="0">
<tr style="background-color:rgb(35, 68, 107);">
<td align="center" style="padding:20px 0;">
<a href="https://yahoo.com" target="_blank" style="color:#033254;">
<img src="cid:logo" width="218" alt="Products Company logo" style="max-width:100%;height:auto;" />
</a>
</td>
</tr>
<tr style="background-color:#ffffff;;">
<td align="center" style="padding:20px 0;">
<a href="https://yahoo.com" target="_blank" style="color:#033254;">
<img src="cid:hero" width="400" alt="Products Company hero" style="max-width:100%;height:auto;" />
</a>
</td>
</tr>
<tr style="background-color:rgb(35, 68, 107);">
<td style="padding:32px; text-align:center;">
<h1 style="margin-top:0;margin-bottom:16px;font-family:Arial,sans-serif;font-size:24px;line-height:30px;letter-spacing:1px;font-weight:bold;color:#ffffff;">
Shipping Confirmation
</h1>
<hr style="border:0;background-color:rgb(35, 68, 107);border-bottom:.5px solid #ffffff;width:66%;"/>
<h3 style="margin:16px 0;font-family:Arial,sans-serif;font-size:18px;line-height:24px;letter-spacing:1px;font-weight:bold;color:#ffffff;">Order# {0}</h3>
<h3 style="margin:16px 0;font-family:Arial,sans-serif;font-size:18px;line-height:24px;letter-spacing:1px;font-weight:bold;color:#ffffff;">{1}</h3>
<p style="margin:24px 0 8px;font-family:Arial,sans-serif;font-size:16px;line-height:22px;letter-spacing:.5px;color:#ffffff;">Thank you for your order!</p>
<p style="margin:8px 0 8px;font-family:Arial,sans-serif;font-size:16px;line-height:22px;letter-spacing:.5px;color:#ffffff;">Good news! It's on its way.</p>
<p style="margin:8px 0 8px;font-family:Arial,sans-serif;font-size:16px;line-height:22px;letter-spacing:.5px;color:#ffffff;">You can find the shipping details below.</p>
<h3 style="margin:16px 0;font-family:Arial,sans-serif;font-size:18px;line-height:24px;letter-spacing:1px;font-weight:bold;color:#ffffff;">
<a style="color:#ffffff;" href="https://www.ups.com/mobile/track?trackingNumber={2}">
[Track my package!]
</a>
</h3>
<p style="margin:32px 0 8px;font-family:Arial,sans-serif;font-size:16px;line-height:22px;letter-spacing:.5px;font-weight:bold;color:#ffffff;">Please contact Customer Service if you have any questions.</p>
<p style="margin:8px 0 8px;font-family:Arial,sans-serif;font-size:16px;line-height:22px;letter-spacing:.5px;color:#ffffff;">Customer Service:
<a style="color:#ffffff;" href="tel:18003665412">1-800-888-8888</a> ext. 8888
</p>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
</div>
</body>
</html>