414             string xSenderHeader = MailHeaderInfo.GetString(MailHeaderID.XSender);  in PrepareEnvelopeHeaders()
421             string headerName = MailHeaderInfo.GetString(MailHeaderID.XReceiver);  in PrepareEnvelopeHeaders()
448             Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.ContentType));  in PrepareHeaders()
450             Headers[MailHeaderInfo.GetString(MailHeaderID.MimeVersion)] = "1.0";  in PrepareHeaders()
454             headerName = MailHeaderInfo.GetString(MailHeaderID.Sender);  in PrepareHeaders()
464             headerName = MailHeaderInfo.GetString(MailHeaderID.From);  in PrepareHeaders()
467             headerName = MailHeaderInfo.GetString(MailHeaderID.To);  in PrepareHeaders()
477             headerName = MailHeaderInfo.GetString(MailHeaderID.Cc);  in PrepareHeaders()
487             headerName = MailHeaderInfo.GetString(MailHeaderID.ReplyTo);  in PrepareHeaders()
501             Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.Bcc));  in PrepareHeaders()
505                 Headers[MailHeaderInfo.GetString(MailHeaderID.XPriority)] = "1";  in PrepareHeaders()
506                 Headers[MailHeaderInfo.GetString(MailHeaderID.Priority)] = "urgent";  in PrepareHeaders()
507                 Headers[MailHeaderInfo.GetString(MailHeaderID.Importance)] = "high";  in PrepareHeaders()
511                 Headers[MailHeaderInfo.GetString(MailHeaderID.XPriority)] = "5";  in PrepareHeaders()
512                 Headers[MailHeaderInfo.GetString(MailHeaderID.Priority)] = "non-urgent";  in PrepareHeaders()
513                 Headers[MailHeaderInfo.GetString(MailHeaderID.Importance)] = "low";  in PrepareHeaders()
518                 Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.XPriority));  in PrepareHeaders()
519                 Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.Priority));  in PrepareHeaders()
520                 Headers.Remove(MailHeaderInfo.GetString(MailHeaderID.Importance));  in PrepareHeaders()
523             Headers.InternalAdd(MailHeaderInfo.GetString(MailHeaderID.Date),  in PrepareHeaders()
526             headerName = MailHeaderInfo.GetString(MailHeaderID.Subject);  in PrepareHeaders()