UWP EmailMessage换行符/新行？

Question

我正在寻找一种方法来在我的UWP应用程序的EmailMessage()主体中添加换行符。

我已经尝试过"\n"，\r\n，Environment.NewLine，<br>，<br />，每次都被省略了，不管是在桌面上，还是在移动上，或者两者兼而有之。我尝试过Outlook和Gmail。

我使用的是VS2015更新3。

谢谢。

编辑:这是代码

    public static async Task ComposeEmail(string address, string messageSubject, StorageFile attachmentFile)
    {
        var emailMessage = new EmailMessage();
        emailMessage.Subject = messageSubject;

        var lineBreak = Environment.NewLine;
        string body = lineBreak + lineBreak + lineBreak + lineBreak + lineBreak + lineBreak + textLoader.GetString("EmailPleaseDontCut") + lineBreak + Info.GetAllInfos();
        emailMessage.Body = body;

        if (attachmentFile != null)
        {
            var stream = Windows.Storage.Streams.RandomAccessStreamReference.CreateFromFile(attachmentFile);

            var attachment = new EmailAttachment(attachmentFile.Name, stream);

            emailMessage.Attachments.Add(attachment);
        }

        emailMessage.To.Add(new EmailRecipient(address));

        await EmailManager.ShowComposeNewEmailAsync(emailMessage);
    }