SmtpServer.Protocol.SmtpCommandFactory.TryMakeEhlo C# (CSharp) Method

        public bool TryMakeEhlo(TokenEnumerator enumerator, out SmtpCommand command, out SmtpResponse errorResponse)
        {
            Debug.Assert(enumerator.Peek() == new Token(TokenKind.Text, "EHLO"));

            command = null;
            errorResponse = null;

            enumerator.Take();
            enumerator.TakeWhile(TokenKind.Space);

            string domain;
            if (_parser.TryMakeDomain(enumerator, out domain))
            {
                command = new EhloCommand(domain, _options);
                return true;
            }

            string address;
            if (_parser.TryMakeAddressLiteral(enumerator, out address))
            {
                command = new EhloCommand(address, _options);
                return true;
            }

            errorResponse = SmtpResponse.SyntaxError;
            return false;
        }