protected String readResponse() throws Exception {
		final StringBuilder builder = new StringBuilder();
		boolean done = false;
		while (!done) {
			final String line = this.reader.readLine();
			if (line.charAt(3) != '-') {
				done = true;
			}

			builder.append(line);
			builder.append('\n');
		}

		return builder.toString();
	}
Get the complete response, including a multiline response. Newlines are
included.

@return the response
@throws Exception on error
src/test/java/de/gessnerfl/fakesmtp/smtp/client/Client.java