public Article RetrieveArticle(string messageId)
{
var response = _connection.Article(messageId);
if (response.Lines == null)
{
return(null);
}
var articleLines = response.Lines.ToList();
var headers = articleLines.TakeWhile(x => !string.IsNullOrWhiteSpace(x)).Select(Header.Create);
var body = articleLines.SkipWhile(x => !string.IsNullOrWhiteSpace(x)).Skip(1).ToList();
return(new Article(headers, body));
}