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Asked: 2026-05-12T11:23:07+00:00

I have the following code import smtplib from email.mime.text import MIMEText smtpserver = ‘smtp.gmail.com’

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I have the following code 

import smtplib
from email.mime.text import MIMEText



smtpserver = 'smtp.gmail.com'
AUTHREQUIRED = 1 # if you need to use SMTP AUTH set to 1
smtpuser = 'admin@myhost.com'  # for SMTP AUTH, set SMTP username here
smtppass = '123456'  # for SMTP AUTH, set SMTP password here

RECIPIENTS = ['online8@gmail.com']
SENDER = 'admin@myhost.com'

msg = MIMEText('dsdsdsdsds\n')
msg['Subject'] = 'The contents of iii'
msg['From'] = 'admin@myhost.com'
msg['To'] = ''online8@gmail.com''

mailServer = smtplib.SMTP('smtp.gmail.com',587)
mailServer.ehlo()
mailServer.starttls()
mailServer.ehlo()
mailServer.login(smtpuser, smtppass)
mailServer.sendmail(smtpuser,RECIPIENTS,msg.as_string())
mailServer.close()

this code works fine on my desktop. but it failed with this error

smtplib.SMTPAuthenticationError: (535, '5.7.1 Username and Password not accepted. Learn more at\n5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 21sm4713429agd.11')

on my linux server.

Not sure what went wrong, should i open some port on my linux server?

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1 Answer

  1. Editorial Team

    Port 587 obviously needs to be open, but it probably is (or you wouldn’t have gotten the detailed error msg in question). Python 2.5 vs 2.6 should make no difference. I think the issue has to do with “solving a captcha” once on the computer for which logins are currently getting rejected; follow the detailed instructions at the URL in the error message, i.e., http://mail.google.com/support/bin/answer.py?answer=14257

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