/// <summary> /// Adds an custom header to the MailMessage. /// NOTE: some SMTP servers will reject improper custom headers ///</summary> /// <param name="mailheader">MailHeader instance</param> /// <example> /// <code> /// MailMessage msg = new MailMessage("*****@*****.**", "*****@*****.**"); /// MailHeader header = new MailHeader("X-Something", "HeaderValue"); /// msg.AddCustomHeader(header); /// </code> /// </example> public void AddCustomHeader(MailHeader mailheader) { if (mailheader.name != null && mailheader.body != null) { customHeaders.Add(mailheader); } }
/// <summary>Returns the MailMessage as a RFC 822 formatted message</summary> public override string ToString() { StringBuilder sb = new StringBuilder(60000); MimeHeaderLineBuilder lb = new MimeHeaderLineBuilder( ); lb.Traits.SetEncoderCharSet(charset); // reply to email address sb.Append( MimeCommon.ConcatMessageLine( lb.Traits, "Reply-To:", ReplyTo.ToMimeString(lb.Traits.EncoderCharSet), MimeConstants.CrLf)); // BgnTemp debug. an already encoded from email address. if (mEncodedFromAddress != null) { sb.Append(mEncodedFromAddress + MimeConstants.CrLf); } else { // EndTemp debug. // send from email address sb.Append( MimeCommon.ConcatMessageLine( lb.Traits, "From:", From.ToMimeString(lb.Traits.EncoderCharSet), MimeConstants.CrLf)); } // send to email address sb.Append( MimeCommon.ConcatMessageLine( lb.Traits, "To:", ToRecipients.ToMessageHeaderString(lb.Traits.EncoderCharSet), MimeConstants.CrLf)); // sb.Append( "Reply-To: " ) ; // sb.Append( ReplyTo.ToMimeString( charset )) ; // sb.Append( SmtpConstants.CrLf ) ; // sb.Append( "From: " + From.ToMimeStringToMessageHeaderString( charset )) ; // sb.Append( SmtpConstants.CrLf ) ; // sb.Append( "To: " + ToRecipients.ToMessageHeaderString( charset )) ; // sb.Append( SmtpConstants.CrLf ) ; if (CCRecipients.Count > 0) { sb.Append("CC: " + CCRecipients.ToMessageHeaderString(charset)); sb.Append(SmtpConstants.CrLf); } if (BCCRecipients.Count > 0) { sb.Append("BCC: " + BCCRecipients.ToMessageHeaderString(charset)); sb.Append(SmtpConstants.CrLf); } // message subject line. if (Stringer.IsNotEmpty(Subject)) { lb.Clear( ); lb.Append("Subject: "); lb.Append(Subject); sb.Append(lb.ToEncodedString( ) + MimeConstants.CrLf); } // BgnTemp debug. an already encoded subject line. if (mEncodedSubject != null) { sb.Append(mEncodedSubject + MimeConstants.CrLf); } // EndTemp debug. // send timestamp lb .Clear( ) .Append("Date: " + DateTime.Now.ToUniversalTime().ToString("R")); sb.Append(lb.ToEncodedString( ) + MimeConstants.CrLf); sb.Append(SmtpConfig.X_MAILER_HEADER + "\r\n"); if (notification) { if (ReplyTo.FriendlyName != null && ReplyTo.FriendlyName.Length != 0) { sb.Append("Disposition-Notification-To: " + MailEncoder.ConvertHeaderToQP(ReplyTo.FriendlyName, charset) + " <" + ReplyTo.Address + ">\r\n"); } else { sb.Append("Disposition-Notification-To: <" + ReplyTo.Address + ">\r\n"); } } if (priority != null) { sb.Append("X-Priority: " + priority + "\r\n"); } if (customHeaders != null) { for (IEnumerator i = customHeaders.GetEnumerator(); i.MoveNext();) { MailHeader m = (MailHeader)i.Current; if (m.name.Length >= 0 && m.body.Length >= 0) { sb.Append(m.name + ":" + MailEncoder.ConvertHeaderToQP(m.body, charset) + "\r\n"); } else { // TODO: Check if below is within RFC spec. sb.Append(m.name + ":\r\n"); } } } sb.Append("MIME-Version: 1.0\r\n"); sb.Append(GetMessageBody()); return(sb.ToString()); }