Error al enviar correo html

[neodani]

Buenas,

Cuando intento enviar un correo HTML me da un error.

Script

Código Python:

# Send an HTML email with an embedded image and a plain text message for
# email clients that don't want to display the HTML.
 
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
from email.MIMEImage import MIMEImage
 
# Define these once; use them twice!
strFrom = '[email protected]'
strTo = '[email protected]'
 
# Create the root message and fill in the from, to, and subject headers
msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = 'test message'
msgRoot['From'] = strFrom
msgRoot['To'] = strTo
msgRoot.preamble = 'This is a multi-part message in MIME format.'
 
# Encapsulate the plain and HTML versions of the message body in an
# 'alternative' part, so message agents can decide which they want to display.
msgAlternative = MIMEMultipart('alternative')
msgRoot.attach(msgAlternative)
 
msgText = MIMEText('This is the alternative plain text message.')
msgAlternative.attach(msgText)
 
# We reference the image in the IMG SRC attribute by the ID we give it below
msgText = MIMEText('<b>Some <i>HTML</i> text</b> and an image.<br><img src="cid:image1"><br>Nifty!', 'html')
msgAlternative.attach(msgText)
 
# This example assumes the image is in the current directory
fp = open('blue.jpg', 'rb')
msgImage = MIMEImage(fp.read())
fp.close()
 
# Define the image's ID as referenced above
msgImage.add_header('Content-ID', '<image1>')
msgRoot.attach(msgImage)
 
# Send the email (this example assumes SMTP authentication is required)
import smtplib
smtp = smtplib.SMTP()
smtp.connect('smtp.gmail.com')
smtp.login('[email protected]', '123456')
smtp.sendmail(strFrom, strTo, msgRoot.as_string())
smtp.quit()
 

El error que me arroja es el siguiente

Traceback (most recent call last):
File "enviar_correo_html.py", line 44, in <module>
smtp.login(''[email protected]', '123456')
File "C:\Python25\lib\smtplib.py", line 554, in login
raise SMTPException("SMTP AUTH extension not supported by server.")
smtplib.SMTPException: SMTP AUTH extension not supported by server.

¿Sabéis como puedo solucionarlo?

Muchas gracias de antemano!