sending a E-mail subject in chinese using system.web.mail

Question

hi
 i am using system.web.mail to send my mails. i used UTF-8  encoding for encode my message body.
while i am sending a mail with chinese characters the message body is displaying correctly. but the subject field is not coming in chinese instead its showing question mark.

so some one help me to send the subject in chinese.

MailMessage objMessage = new MailMessage ();

string strSMTPHost = (string)ConfigurationSettings.AppSettings["SMTPServer"];

objMessage.To = emailEntity.To;

objMessage.Cc = emailEntity.Cc;

objMessage.Bcc = emailEntity.Bcc;

objMessage.From = emailEntity.From;

objMessage.Subject = emailEntity.Subject ;

objMessage.Body = emailEntity.Body ;

objMessage.BodyFormat = MailFormat.Html;

objMessage.BodyEncoding = System.Text.Encoding.UTF8;

objMessage.Priority = emailEntity.EmailPriority;

SmtpMail.SmtpServer = strSMTPHost;

SmtpMail.Send(objMessage);

Answer 1

Use the SubjectEncoding property.

---

Hans Passant.

Answer 2

To send Unicode in email headers, you have to use Encoded Word (RFC1522).

My badly written code is (only the last line is required if you want to encode unconditionally):

private String EncodedWord(string s)

{

bool MustEncode = false;

foreach (Char c in s)

if (Convert.ToInt32(c)>127) MustEncode=true;

if (!MustEncode) return s;

return "=?UTF-8?b?"+Convert.ToBase64String(new UTF8Encoding().GetBytes(s))+"?=";

}

Hope this helps.

-kk

PS: You should be using System.Net.Mail instead of system.web.mail.