Sending an Email with Python3 via smtplib

It possible to use the module smtplib to send an Email with python3.

#!/usr/bin/env python3

import smtplib 
from email.message import EmailMessage

to_addr = 'to@example.com'
from_addr = 'from@example.com'
mail_server = 'mail.example.com'
passwd = 'YOUR_MAILBOX_PASSWORD'

message = EmailMessage()
message["To"]      = to_addr
message["From"]    = from_addr
message["Subject"] = 'Sent with Python & Smtplib'
message.set_payload('This is a test message!')

s = smtplib.SMTP_SSL(mail_server, 465)
s.login(to_addr, passwd)
s.sendmail(to_addr, from_addr, message.as_string())
s.quit()