from socket import *

msg = '\r\n This is a test message!'
endmsg = "\r\n.\r\n"

mailserver = ("alt3.gmail-smtp-in.l.google.com", 25)

clientSocket = socket(AF_INET, SOCK_STREAM)
clientSocket.connect(mailserver)

recv = clientSocket.recv(10240)
recv = recv.decode()
print("testing:" + recv)
if recv[:3] != '220':
    print("220 nothing  received from server.")

heloCommand = "EHLO test\r\n"
clientSocket.sendall(heloCommand.encode())
recv1 = clientSocket.recv(10240)
recv1 = recv1.decode()
print(":OK" + recv1)

if recv1[:3] != '250':
    print('250  nothing  received from server.')

mailFrom = "MAIL FROM:<mrmhha4@gmail.com>\r\n"
clientSocket.sendall(mailFrom.encode())
recv2 = clientSocket.recv(10240)
recv2 = recv2.decode()
print(" MAIL FROM mrmhha4@gmail.com:OK " + recv2)

rcptTo = "RCPT TO:<mrmhha4@gmail.com>\r\n"
clientSocket.sendall(rcptTo.encode())
recv3 = clientSocket.recv(10240)
recv3 = recv3.decode()
print("RCPT TO mrmhha4@gmail.com:OK" + recv3)

data = "DATA +\r\n"
clientSocket.sendall(data.encode())
recv4 = clientSocket.recv(10240)
recv4 = recv4.decode()
print("DATA command:This is a test message\r\n" + recv4)

clientSocket.sendall((" FROM : mrmhha4@gmail.com" + msg + endmsg).encode())
recv_msg = clientSocket.recv(10240)

print("Response after sending message body:HELLO" + recv_msg.decode())
quit = "QUIT\r\n"

clientSocket.sendall(quit.encode())
recv5 = clientSocket.recv(10240)
print(recv5.decode())
clientSocket.close()