PYTHON

from socket import *

def smtp_client(port=1025, mailserver='127.0.0.1'): msg = " My message" endmsg = " . "

# Choose a mail server (e.g. Google mail server) if you want to verify the script beyond GradeScope

# Create socket called clientSocket and establish a TCP connection with mailserver and port

# Fill in start # Fill in end

recv = clientSocket.recv(1024).decode() #print(recv) #You can use these print statement to validate return codes from the server. #if recv[:3] != '220': # print('220 reply not received from server.')

# Send HELO command and print server response. heloCommand = 'HELO Alice ' clientSocket.send(heloCommand.encode()) recv1 = clientSocket.recv(1024).decode() #print(recv1) #if recv1[:3] != '250': # print('250 reply not received from server.')

# Send MAIL FROM command and handle server response. # Fill in start # Fill in end

# Send RCPT TO command and handle server response. # Fill in start # Fill in end

# Send DATA command and handle server response. # Fill in start # Fill in end

# Send message data. # Fill in start # Fill in end

# Message ends with a single period, send message end and handle server response. # Fill in start # Fill in end

# Send QUIT command and handle server response. # Fill in start # Fill in end

if __name__ == '__main__': smtp_client(1025, '127.0.0.1')