dbmail load test

#!/usr/bin/env python3

import socket
import time

HOST = '10.0.0.1'
PORT = 143

while(1):
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        
        s.connect((HOST, PORT))
        s.send(b'. login x y\n')
        
        data = s.recv(4096)
        if b"* OK [CAPABILITY" in data:
            print('.', end = '', flush = True)
            continue
        elif b"Service unavailable" in data:
            print('Service unavailable')
            break
        else:
            print('Non expected server response: ', str(data))
            break

        s.close() # close() will be calling automatically. It for visibility