subject displays in encoding format while sending long subject

Question

I am sending mail to outlook using System.Net.Mail Here code i used,

msg.From = new MailAddress("stagingsupport@syncfusion.com");
msg.IsBodyHtml = true;
msg.Body = "Some text";                        
msg.To.Add("karthike@syncfusion.com");
msg.Subject = "[Enterprise Priority] - Customer Incident 85172 for Karthik (108269) velusamys@syncfusion.com : Custom function called from within an AND function results in error - Syncfusion Website Team Test I – Created";

I am getting the subject like =?utf-8?B?W0VudGVycHJpc2UgU...

I dint give any non ascii character in subject but i comes in encoded form.I refered the following link,i cant get the solution that much,

System.Net.Mail and =?utf-8?B?XXXXX.... Headers

What i have to follow to get the subject come correct decoded form?

Answer 1

您必须设置UTF8编码。

msg.SubjectEncoding= System.Text.Encoding.UTF8;