I wrote a simple script to send an email via the Gmail SMTP server. Here the code:
import smtplib
msg = 'Hello World!'
server = smtplib.SMTP('smtp.gmail.com', 587) #port 465 or 587
server.ehlo()
server.starttls()
server.ehlo()
server.login('[email protected]','password')
server.sendmail('[email protected]','[email protected]', msg)
server.close()
Sometimes it works and sometimes I get an error. What is the reason for it? I have configured Gmail for accepting less secure apps. If the error occurs I get the following message:
Traceback (most recent call last):
File "email.py", line 31, in <module>
server.login('[email protected]','password')
File "/usr/lib/python3.5/smtplib.py", line 729, in login
raise last_exception
File "/usr/lib/python3.5/smtplib.py", line 720, in login
initial_response_ok=initial_response_ok)
File "/usr/lib/python3.5/smtplib.py", line 641, in auth
raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (534, b'5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbvQ\n5.7.14 DBMYWMukfjghdjfkghfjkhjkfhgjkdhgdfjkghekjghekjgndjkSm5lAOfEpP2Nt\n5.7.14 QihtNp5izjfghjjkjhgbhjbGHJVHJVjhvhjbhjbhjDZwhJFV-FiyvI-OGW\n5.7.14 jcpmHcQAcOR8e8G0zOfdugjhfdjd-sdfiugdsjfdsrthdfewrzjhg-shgv2HxmgWpZg3Z\n5.7.14 4G1ENiAlgiEnrkXyRbTG3frjZZdPg> Please log in via your web browser and\n5.7.14 then try again.\n5.7.14 Learn more at\n5.7.14 https://support.google.com/mail/answer/78754 g40sm24698383wrg.19 - gsmtp')
I couldn't find any help on the internet. Many thanks in advance for every advice.
The answer recommends enabling access for less secure apps first. If that does not work you could try visiting the link, which is supplied on that page: https://www.google.com/accounts/DisplayUnlockCaptcha
This may enable access.