import smtplib

server = smtplib.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.login("mymail@gmail.com", "mypassword")

msg = "Hello world"
server.sendmail("mymail@gmail.com", "mymail@gmail.com", msg)
server.quit()

server.login("user@gmail.com", "psw")

File "C:Pythonlibsmtplib.py", line 652, in login

raise SMTPAuthenticationError(code, resp)

smtplib.SMTPAuthenticationError: (534, b'5.7.14 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbuxbn5.7.14 4i2u8qU8V3jgf6uGv8da1RAGPJyctRvIFy_kjai6aKVx_B6qVhoz_dzFpvfPC18H-jeM6Kn5.7.14 cnm2HVuq-wr-uw59hD31ms-cxMmnZuq6Z3_liDaDmu8_UqaiUwR4FUiuX2i5pPdQjJzFvvn5.7.14 4VrEF5XT4ol2iN17gnB_jITpwzsjH9Ox3NCNcfl7SriHr5m7esc15PWI0CG_2CTlyh7RxWn5.7.14 XhoJPajs8GMd-khOQWUqucywfrfo> Please log in via your web browser andn5.7.14 then try again.n5.7.14 Learn more atn5.7.14 https://support.google.com/mail/bin/answer.py?answer=78754 ef10sm13614207wjd.49 - gsmtp')

import smtplib

session = smtplib.SMTP('smtp.gmail.com', 587)
session.ehlo()
session.starttls()
session.login('youremail@gmail.com',' password')
headers = "rn".join(["from: " + 'youremail@gmail.com',
                       "subject: " + "test",
                       "to: " + 'contactemail@gmail.com',
                       "mime-version: 1.0",
                       "content-type: text/html"])

# body_of_email can be plaintext or html!
content = headers + "rnrn" + "body_of_email"
session.sendmail('youremail@gmail.com', 'contactemail@gmail.com', content)

import requests

def send_simple_message(target):
    return requests.post(
        "https://api.mailgun.net/v3/samples.mailgun.org/messages",
        auth=("api", "key-3ax6xnjp29jd6fds4gc373sgvjxteol0"),
        data={"from": "Excited User <excited@samples.mailgun.org>",
              "to": [target],
              "subject": "Hello",
              "text": "Testing some Mailgun awesomeness!"})

send_simple_message('target@email.com')

import yagmail
yag = yagmail.SMTP('user', 'pw')
yag.send(contents = msg)

contents = ['Body text, and here is an embedded image:', 'http://somedomain/image.png',
            'You can also find an audio file attached.', '/local/path/song.mp3']

import yagmail
yagmail.SMTP().send(contents = contents)