messages.put("headers", RestV2IT.addMessage(EMAIL_REGULAR, labelId));
messages.put("attach", RestV2IT.addMessage(EMAIL_LARGE_ATT, labelId));
// initialize POP3 client
POP3Client client = new POP3Client();
client.connect(POP3_HOST, POP3_PORT);
// Login
boolean loginSuccess = client.login(TEST_ACCOUNT, TEST_PASSWORD);
assertThat(loginSuccess, is(true));