SMTPAuthenticationError when sending mail using gmail and python

Question

when i try to send mail using gmail and python error occurred this type of question are already in this site but doesn t help to me   gmail user    me gmail com  gmail pwd    password  TO    friend gmail com  SUBJECT    Testing sending using gmail  TEXT    Testing sending mail using gmail servers  server   smtplib SMTP  smtp gmail com   587  server ehlo   server starttls   server login gmail user  gmail pwd  BODY     r n  join   To   s    TO           From   s    gmail user           Subject   s    SUBJECT              TEXT    server sendmail gmail user   TO   BODY  print   email sent     error       server login gmail user  gmail pwd      File   usr lib python3 4 smtplib py   line 639  in login    raise SMTPAuthenticationError code  resp     smtplib SMTPAuthenticationError   534  b 5 7 14        lt https   accounts google com ContinueSignIn sarp 1 amp scc 1 amp plt AKgnsbtl1 n5 7 14       Li2yir27TqbRfvc02CzPqZoCqope OQbulDzFqL-msIfsxObCTQ7TpWnbxIoAaQoPuL9ge n5 7 14 BUgbiOqhTEPqJfb02d L6rrdduHSxv26s Ztg JYYavkrqgs85IT1xZYwtbWIRE8OIvQKf n5 7 14 xxtT7ENlZTS0Xyqnc1u4 MOrBVW8pgyNyeEgKKnKNyxce76JrsdnE1JgSQzr3pr47bL-kC n5 7 14 XifnWXg gt  Please log in via your web browser and then try again  n5 7 14 Learn more at n5 7 14 https   support google com mail bin answer py answer 78754 fl15sm17237099pdb 92 - gsmtp

User · Accepted Answer

Your code looks correct  Try logging in through your browser and if you are able to access your account come back and try your code again  Just make sure that you have typed your username and password correct  EDIT  Google blocks sign-in attempts from apps which do not use modern security standards  mentioned on their support page   You can however  turn on off this safety feature by going to the link below   Go to this link and select Turn On https   www google com settings security lesssecureapps

User · Answer

Your code looks correct but sometimes google blocks an IP when you try to send a email from an unusual location  You can try to unblock it by visiting https   accounts google com DisplayUnlockCaptcha from the IP and following the prompts  Reference  https   support google com accounts answer 6009563

User · Answer

I have just sent an email with gmail through Python  Try to use smtplib SMTP SSL to make the connection  Also  you may try to change the gmail domain and port   So  you may get a chance with   server   smtplib SMTP SSL  smtp googlemail com   465  server login gmail user  password  server sendmail gmail user  TO  BODY    As a plus  you could check the email builtin module  In this way  you can improve the readability of you your code and handle emails headers easily

[python] SMTPAuthenticationError when sending mail using gmail and python

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