如何使用SendGrid for C#发送文本/html编码为UTF-8的电子邮件？

我试图发送包含特殊字符的电子邮件，如á、é、ó、í、ú等。我的代码如下所示：

try
{
   Mail message = Mail.GetInstance();
   foreach (Users u in users)
   {
       message.AddBcc(u.Email);
   }
   message.From = new MailAddress(Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailFrom"), Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailFromName"));
   message.Subject = Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailSubject");

   message.Html = "<meta charset=\"UTF-8\"/>" + 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailText1") + 
       " " + address+ ".<br/>" + 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailText2");

   var transport = SMTP.GetInstance(new NetworkCredential(
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailLogin"), 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailPass")));
   transport.Deliver(message);
   isEmailSent = true;
}
catch (Exception ex)
{
    Debug.WriteLine(ex.Message + " \n " + ex.InnerException + " \n " + ex.StackTrace);
    isEmailSent = false;
}

string normalizedString = InString.Normalize(NormalizationForm.FormKD);

这是：

   message.Html = Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting
       ("emailText1") + " " + address+ ".<br/>" + 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailText2");

message.Html=Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting
（“emailText1”）+“”+地址+”
“+
Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting（“emailText2”）；

但电子邮件仍以错误的编码发送

编辑2

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我尝试了这个问题的答案，更具体地说，我尝试了方法

encodenonasicharacters

，但我在电子邮件

sanjer\u00c3\u00b3nimo Amanal

中得到了这个答案。我在这封邮件中采取了错误的方法吗？

这花了一些时间，但至少我找到了一种不用特殊字符发送电子邮件的方法，我必须使用规范化表单兼容性分解得到的字符串，这是通过字符串类'完成的，如下所示：

try
{
   Mail message = Mail.GetInstance();
   foreach (Users u in users)
   {
       message.AddBcc(u.Email);
   }
   message.From = new MailAddress(Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailFrom"), Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailFromName"));
   message.Subject = Microsoft.WindowsAzure.CloudConfigurationManager
       .GetSetting("emailSubject");

   message.Html = "<meta charset=\"UTF-8\"/>" + 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailText1") + 
       " " + address+ ".<br/>" + 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailText2");

   var transport = SMTP.GetInstance(new NetworkCredential(
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailLogin"), 
       Microsoft.WindowsAzure.CloudConfigurationManager.GetSetting("emailPass")));
   transport.Deliver(message);
   isEmailSent = true;
}
catch (Exception ex)
{
    Debug.WriteLine(ex.Message + " \n " + ex.InnerException + " \n " + ex.StackTrace);
    isEmailSent = false;
}

string normalizedString = InString.Normalize(NormalizationForm.FormKD);

引用维基百科的话：

字符按兼容性和多重组合进行分解 字符按特定顺序排列

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也就是说，如果还有一个字符的兼容性由两个字符表示，那么它将被所述字符替换。对于像é这样的字符，它将被e替换。

您可以定义消息的编码：

message.HtmlTransferEncoding = TransferEncoding.Base64;

此示例使ascii表的第二部分能够正确显示

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快乐编码

我认为问题在于，尽管您可能已将数据存储在UTF8中，但将其读入.NET字符串将导致它转换回双字节。如果省略了meta字符集标记，它看起来正确吗？它仍然在没有正确编码的情况下发送消息