SMTP

import base64
import ssl
from socket import *
from pip._vendor.distlib.compat import raw_input

msg = "\r\n I love computer networks!"
endmsg = "\r\n.\r\n"
# Choose a mail server (e.g. Google mail server) and call it mailserver
mailserver = ("smtp.gmail.com", 587)#Fill in start   #Fill in end#
# Create socket called clientSocket and establish a TCP connection with mailserver

# #Fill in start
clientSocket = socket(AF_INET, SOCK_STREAM)
clientSocket.connect(mailserver)
# #Fill in end
recv = clientSocket.recv(1024).decode()
print(recv)
if recv[:3] != '220':
    print('220 reply not received from server.')

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

tlsCommand = 'STARTTLS \r\n'
clientSocket.send(tlsCommand.encode())
recv2 = clientSocket.recv(1024)
recv2 = recv2.decode()
print(recv2)
if recv2[:3] != '220':
   print('220 reply not received from server.')

ssl_clientSocket = ssl.wrap_socket(clientSocket)

username = "CMPE131Shifter@gmail.com"                     #the username for your server
password = "stvllqyzbgogueon"                                    #the password for your server, changed here

base64_str = ("\x00"+username+"\x00"+password).encode()
base64_str = base64.b64encode(base64_str)
authMsg = "AUTH PLAIN ".encode()+base64_str+"\r\n".encode()
ssl_clientSocket.send(authMsg)
recv_auth = ssl_clientSocket.recv(1024)
print(recv_auth.decode())
if recv1[:3] != '250':
    print('250 reply not received from server.')






sender = "<CMPE131Shifter@gmail.com>"
recipient = "<hernandez.veida@gmail.com>"

# Send MAIL FROM command and print server response.
mailFrom = "MAIL FROM: <CMPE131Shifter@gmail.com> \r\n"
ssl_clientSocket.send(mailFrom.encode())
recv2 = ssl_clientSocket.recv(1024)
print(recv2)
if recv2[:3] != '250':
	print('250 reply not received from server.')

# Send RCPT TO command and print server response.
rcptToCommand = ('RCPT TO: ' + recipient + '\r\n')
ssl_clientSocket.write(rcptToCommand.encode())
recv3 = ssl_clientSocket.read(1024)
print(recv3)
if recv3[:3] != '250':
	print ('250 reply not received from server.')

# Send DATA command and print server response.
# Fill in start
data = "DATA\r\n"
ssl_clientSocket.send(data.encode())
recv4 = ssl_clientSocket.recv(1024)
print(recv4)
if recv2[:3] != '250':
    print('250 reply not received from server.')

# Fill in end

# Send message data.
# Fill in start
message = raw_input("Enter your message: \r\n")
# Fill in end

# Message ends with a single period.
# Fill in start
subject = "Subject: SMTP mail client testing \r\n\r\n"
ssl_clientSocket.send(subject.encode())
ssl_clientSocket.send(message.encode())
ssl_clientSocket.send(endmsg.encode())
recv_msg = ssl_clientSocket.recv(1024)
print("Response after sending message body:"+recv_msg.decode())
if recv2[:3] != '250':
    print('250 reply not received from server.')


# Fill in end

# Send QUIT command and get server response.
# Fill in start
ssl_clientSocket.send("QUIT\r\n".encode())
message=ssl_clientSocket.recv(1024)
print (message)
ssl_clientSocket.close()

# Fill in end