Python 3: sending emails through any online webmail service - email

Question

what sort of python script/function/library would allow you to send emails through any webmail service, be it gmail, yahoo, hotmail, email from your own domain etc.?
I found several examples relating to the single cases (mostly gmail), but not an all-encompassing solution.
Ex.: user inputs username, password, webmail service, then can send an email from within the python program.
Thanks.

Answer 1

Well, you can see some examples of how to do it here: http://docs.python.org/3/library/email-examples.html
Otherwise, you can try this:
from smtplib import SMTP_SSL as SMTP
import logging, logging.handlers, sys
from email.mime.text import MIMEText
def send_message():
text = '''
Hello,
This is an example of how to use email in Python 3.
Sincerely,
My name
'''
message = MIMEText(text, 'plain')
message['Subject'] = "Email Subject"
my_email = 'your_address#email.com'
# Email that you want to send a message
message['To'] = my_email
try:
# You need to change here, depending on the email that you use.
# For example, Gmail and Yahoo have different smtp. You need to know what it is.
connection = SMTP('smtp.email.com')
connection.set_debuglevel(True)
# Attention: You can't put for example: 'your_address#email.com'.
# You need to put only the address. In this case, 'your_address'.
connection.login('your_address', 'your_password')
try:
#sendemail(<from address>, <to address>, <message>)
connection.sendmail(my_email, my_email, message.as_string())
finally:
connection.close()
except Exception as exc:
logger.error("Error sending the message.")
logger.critical(exc)
sys.exit("Failure: {}".format(exc))
if __name__ == "__main__":
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(formatter)
logger.addHandler(ch)
send_message()

Answer 2

You can send E-Mails via any webmail (that supports SMTP) with the smtplib module. That looks like this:
import smtplib
import getpass
servername = input("Please enter you mail server: ")
username = input("Please enter your username: ")
password = getpass.getpass() # This gets the password without echoing it on the screen
server = smtplib.SMTP(servername)
server.login(username, password) # Caution this now uses plain connections
# Read the documentations to see how to use SSL
to = input("Enter your destination address: ")
msg = input("Enter message: ")
message = "From: {0}#{1}\r\nTo: {2}\r\n\r\n{3}".format(username, servername, to, msg)
server.sendmail(username+"#"+servername, to, message)
server.quit
Please note that this example is neither clean nor tested. Look at the documentation for more information. Also it is very likely that you need to adjust a lot of stuff depending on the server you want to connect with.
For creating the message it's a good idea to look at the email module.