SendGrid SMTP API:嵌入图像:错误请求 [英] SendGrid SMTP API : Embed Image : Bad Request
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问题描述
我正在使用 sendgrid SMTP API https://github.com/sendgrid/sendgrid-csharp 发送电子邮件,但我不知道如何嵌入图像.我可以使用 .Net 本机邮件 API 做到这一点,没有问题.我只是收到一个错误的请求.这是我抛出的代码
I am using the sendgrid SMTP API https://github.com/sendgrid/sendgrid-csharp to send emails but I cannot figure out how to embed an image. I can do it using .Net native mail api without issues. I am simply getting a Bad Request. Here is my code that is throwing
private static void Main(string[] args)
{
try {
//// Create the email object first, then add the properties.
var myMessage = new SendGridMessage();
contact_list = new List<MailAddress>();
contact_list.Add(new MailAddress("email@gmail.com"));
myMessage.To = contact_list.ToArray();
myMessage.From = new MailAddress("clientservice@stpis.com");
myMessage.Subject = "Subject";
string html = "<div><img src=cid:Logo /></div>";
myMessage.Html = html;
myMessage.EmbedImage(@"C:\logo.png", "Logo");
SendMessage(myMessage);
}
catch(Exception e)
{
Console.WriteLine(e.Message);
}
}
private static void SendMessage(SendGridMessage message)
{
// Create credentials, specifying your user name and password.
var credentials = new NetworkCredential("username", "pwdpwdpwd");
// Create a Web transport for sending email.
var transportWeb = new Web(credentials);
// Send the email.
try
{
transportWeb.Deliver(message);
Console.WriteLine("Sent!");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
推荐答案
我想出了如何让它发挥作用.这是使用的代码:
I figured out how to get this working. Here is the code used:
var myMessage = new SendGridMessage();
contact_list = new List<MailAddress>();
contact_list.Add(new MailAddress("my email address"));
myMessage.To = contact_list.ToArray();
myMessage.From = new MailAddress("clientservice@stpis.com", "STP Client Service");
myMessage.Subject = "STP Report Package: " + package_report_name;
string img = @"C:\\logo.png";
ContentType ctype = new ContentType("image/png");
var attachment = new Attachment(img, ctype);
var linkedResource = new LinkedResource(img, ctype);
myMessage.AddAttachment(attachment.ContentStream, attachment.Name);
myMessage.EmbedImage(attachment.Name, linkedResource.ContentId);
string html = "<img src=cid:"+linkedResource.ContentId+" />";
myMessage.Html = html;
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