Having trouble with sending an email through SMTP Python

Question

So I'm trying to send an email through SMTPlib with Python, but I can't get it to work. I read up on the Microsoft SMTP specs, and put them in accordingly, but I can't get it to work. Here is my code:

 # Send an email SERVER = "smtp-mail.outlook.com" PORT = 587 USER = "******@outlook.com" PASS = "myPassWouldBeHere" FROM = USER TO = ["******@gmail.com"] SUBJECT = "Test" MESSAGE = "Test" message = """\ From: %s To: %s Subject: %s %s """ % (FROM, ", ".join(TO), SUBJECT, MESSAGE) try: server = smtplib.SMTP() server.connect(SERVER, PORT) server.starttls() server.login(USER,PASS) server.sendmail(FROM, TO, message) server.quit() except Exception as e: print e print "\nCouldn't connect."

I got the code from a keylogger, but I cleaned it up a bit. I read up here on how basic SMTP works, but there are few things like starttls (Methods) I don't quite understand.

I really appreciate any help with this.

What does "I can't get it to work" mean? Do you get an error message? Does it crash you PC? — Robᵩ
– Robᵩ, Commented May 19, 2015 at 1:20
The immediate problem here is that you are not creating a valid SMTP message. At a minimum, you need an empty line between the headers and the message body; but the proper solution is to use Python's email library to create an actually valid SMTP message; pasting together strings only works when your message is trivial, and/or you know exactly what you are doing. — tripleee
– tripleee, Commented Nov 23, 2021 at 10:54

Kish · Accepted Answer · 2015-05-19 01:29:20Z

Try this. This works in Python 2.7.

def send_mail(recipient, subject, message): import smtplib from email.MIMEMultipart import MIMEMultipart from email.MIMEText import MIMEText username = "[email protected]" password = "sender's password" msg = MIMEMultipart() msg['From'] = username msg['To'] = recipient msg['Subject'] = subject msg.attach(MIMEText(message)) try: print('sending mail to ' + recipient + ' on ' + subject) mailServer = smtplib.SMTP('smtp-mail.outlook.com', 587) mailServer.ehlo() mailServer.starttls() mailServer.ehlo() mailServer.login(username, password) mailServer.sendmail(username, recipient, msg.as_string()) mailServer.close() except error as e: print(str(e)) send_mail('[email protected]', 'Sent using Python', 'May the force be with you.')

If the message only has one part, wrapping it in a multipart is obviously redundant.
It is now 2021, and you should probably not use code which targets the Python email library as it was before version 3.6 (2016).
If you have smtplib.SMTPNotSupportedError: STARTTLS extension not supported by server. errors, in the ehlo commands specify any lowercase string as the parameter. For more detail: stackoverflow.com/questions/69541840/…

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