MailMessage，發件人的顯示名稱是「???????」

Question

問題：我得到「???????」而不是發送者的顯示名稱（顯示名稱utf8的文本，也使用System.Web.Mail.MailMessage嘗試，但得到了同樣的結果）：

var fromAddress = new MailAddress("from@mail.com", "Some UTF8 text"); 
    var toAddress = new MailAddress(toAddress); 

    var client = new SmtpClient 
    { 
     Host = "smpt.server", 
     Port = 465, 
     EnableSsl = true, 
     DeliveryMethod = SmtpDeliveryMethod.Network, 
     UseDefaultCredentials = false, 
     Credentials = new NetworkCredential(fromAddress.Address, "password"), 
     Timeout = 5000 
    }; 
    var message = new MailMessage(fromAddress, toAddress) 
    { 
     Subject = title, 
     Body = messageStr, 
     IsBodyHtml = true 
    }; 

Answer 1

你試圖改變構造？

var fromAddress = new MailAddress("from@mail.com", "Some UTF8 text", System.Text.Encoding.UTF8); 

MailAddress Constructor (String, String, Encoding)