使用System.Net.Mail.SmtpClient发送的电子邮件的字体大小

Question

我有一个经过广泛测试的ASP.Net Web应用程序。它的一部分使用System.Net.Mail.SmtpClient自动发送一封电子邮件。在测试期间，从各种Windows 7机器发送电子邮件并将其格式化为合理的字体大小。我不会在代码中设置字体大小，顺便说一句。现在应用程序已投入使用，第一封电子邮件以非常小的字体发送，用户希望增加字体大小。我可以硬编码字体大小，但我更愿意理解这里发生了什么。什么决定字体大小？它是否在SmtpClient中，或SMTP服务器上的某些设置，或什么？以下是发送电子邮件的代码。 TemplateEditor是页面上的AjaxControlToolkit.HTMLEditor控件。 AttyParaMessageBody是包含电子邮件正文的变量。我们的用户在Windows 7上使用Outlook 2010

string AttyParaMessageBody = TemplateEditor.Content; 
LHEmail.SendEmail(LHClassLibrary.LHConfigurationManager.AppSettings["ApprovedNewVersionLHEmailSubject"].ToString(), AttyParaMessageBody, AttyParaAddressees, CurrentLitHoldDetails.ResponsibleAttorney.Email, LHClassLibrary.LHConfigurationManager.AppSettings["EmailCCList"].ToString() + ";" + tbEmails.Text); 

public static void SendEmail(string subject, string body, string to, string from, string cc) 
    { 
     SendEmail(subject, body, to, from, cc, "", "", MailPriority.High); 
    } 

public static void SendEmail(string subject, string body, string to, string from, string cc, string bcc, string fileName, MailPriority Priority) 
    { 

     MailMessage msgMail = new MailMessage(); 
     SmtpClient emailClient = new SmtpClient(); 
     try 
     { 
      msgMail = BuildMessage(subject, body, to, cc, bcc, from, fileName, Priority); 
      emailClient.Send(msgMail); 
     } 
     catch (Exception ex) 
     { 
      string exception = ex.ToString(); 
     } 
     finally 
     { 
      msgMail.Dispose(); 
     } 
    } 

private static MailMessage BuildMessage(string subject, string body, string to, string cc, string bcc, string from, string fileName, MailPriority Priority) 
    { 
     MailMessage msgMail = new MailMessage(); 

     if (!to.Equals(string.Empty)) 
     { 
      //format emails for .NET 4.0 version 
      string[] toAddressList = to.Split(';'); 

      //Loads the To address field 
      foreach (string toaddress in toAddressList) 
      { 
       if (toaddress.Length > 0) 
       { 
        msgMail.To.Add(toaddress); 
       } 
      } 

      //optional args 
      //format emails for .NET 4.0 version 
      if (!cc.Equals(string.Empty)) 
      { 
       string[] ccAddressList = cc.Split(';'); 

       //Loads the Cc address field 
       foreach (string ccaddress in ccAddressList) 
       { 
        if (ccaddress.Length > 0) 
        { 
         msgMail.CC.Add(ccaddress); 
        } 
       } 
      } 
      if (!bcc.Equals(string.Empty)) 
      { 
       string[] bccAddressList = bcc.Split(';'); 

       //Loads the Bcc address field 
       foreach (string bccaddress in bccAddressList) 
       { 
        if (bccaddress.Length > 0) 
        { 
         msgMail.Bcc.Add(bccaddress); 
        } 
       } 
      } 
      if (!fileName.Equals(string.Empty)) 
       msgMail.Attachments.Add(new Attachment(fileName)); 

      msgMail.Priority = Priority; 
      msgMail.From = ((from == null) || (from.Equals(string.Empty))) ? new MailAddress("LitHold@kramerlevin.com", "Litigation Hold") : new MailAddress(from, "Litigation Hold"); 
      msgMail.Subject = subject; 
      msgMail.Body = body; 
      msgMail.IsBodyHtml = true; 

     } 
     else { throw new SmtpFailedRecipientException("Failed to provide destination address"); } 
     return msgMail; 
    } 

Answer 1

从我的经验，当我需要将通过SMTP发送我的电子邮件内容进行格式化，我将使用HTML标记时，我的内容设定值变量。例如：

String content = "<h2>Thank you for your e-mail</h2><font size=4>We appreciate your feedback.<br/> We will process your request soon</font><br/>Regards."; 

如果您的内容将在后面的代码中设置，那么您可以使用上述方法。

希望它有帮助。