c#之在 ASP.NET 中将电子邮件发送给带有丹麦语字符的收件人

我正在尝试使用电子邮件类 MailMessage 和 SMTPClient 在 ASP.NET 中发送电子邮件。该代码工作正常，但当收件人地址包含丹麦字符时，例如Niels.Østergaard@company.dk，Send() 方法抛出一个异常，提示地址的格式。如何解决这个问题？这段代码如下:

MailMessage mail = new MailMessage(); 
 
//set the addresses 
MailAddress fromAddress = new MailAddress(from); 
 
foreach (string s in to) 
{ 
    mail.To.Add(new MailAddress(s)); 
} 
 
mail.From = fromAddress; 
mail.Subject = subject; 
mail.Body = body; 
mail.IsBodyHtml = false; 
 
// Include attachments if any 
if (files != null) 
{ 
    foreach (string file in files) 
    { 
        mail.Attachments.Add(new Attachment(string.Format("{0}\\{1}",  
            HttpContext.Current.Server.MapPath("~/Temp"),  file))); 
    } 
} 
 
// These settings should be retrieved from web.config 
SmtpClient smtp = new SmtpClient(); 
smtp.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory; 
smtp.PickupDirectoryLocation = @"C:\Temp\Mail"; 
smtp.Send(mail); 

请您参考如下方法:

我使用 http://msdn.microsoft.com/en-us/library/system.globalization.idnmapping.aspx 取得了一些成功来解决这个问题。

像这样:

        var m = new IdnMapping(); 
        var parts = "Niels.Østergaard@company.dk".Split('@'); 
        var adr = new MailAddress(string.Concat( 
            m.GetAscii(parts[0]), 
            "@", 
            m.GetAscii(parts[1])));