[SOLUCIONADO] servidor SMTP con python

[alfa18]

Hola foreros,
estoy peleandome con un servidor de correo en python3 pero no veo donde esta el error, ¿me echais una mano?

Código:

import smtplib

PASS='.........'
sender = '[email protected]'
receivers = ['[email protected]']

message = """From: From Person <[email protected]>
To: To Person <[email protected]>
Subject: SMTP e-mail test

This is a test e-mail message.
"""

try:
   smtpObj = smtplib.SMTP_SSL('smtp.mail.yahoo.com', 465)
smtp.login(sender, PASS)
   smtpObj.sendmail(sender, receivers, message)         
   print("Successfully sent email")
smtp.quit()
except smtplib.SMTPException:
   print("Error: unable to send email")

Gracias foreros,
Feliz año¡¡¡¡