umail library OSError: -202

[NahianMugdho]

Hello, I'm using the umail library from the following source -
(https://github.com/shawwwn/uMail)

While I'm trying to run any of the examples that were given in the source, I'm getting the following error-

Traceback (most recent call last):
File "", line 2, in
File "umail.py", line 30, in init
OSError: -202

my code -

import umail
smtp = umail.SMTP('smtp.gmail.com', 587, username='[email protected]', password='mypassword')
smtp.to('[email protected]')
smtp.send("This is an example.")
smtp.quit()

[th3w]

Did you setup and activate a network connection on the mcu before you run above code?

[NahianMugdho]

Hello, thanks for your reply. I have just written some code to set up wifi and added it to this example and now the OSerror is gone. But I'm getting a new error -

AssertionError: auth error 535'.['5.7.8 Username and Password not accepted. Learn more at', '5.7.8 https://support.google.com/mail/?p=BadCredentials 199-20020a6216d0000000b00580f224cdf6sm7014998pfw.203 - gsmtp']

[th3w]

What about using the option ssl=True and Port 465?

smtp = umail.SMTP('smtp.gmail.com', 465, ssl=True, username='[email protected]', password='mypassword')

[NahianMugdho]

The same error arrived. While searching on the internet, I found that I had to allow 'Less Secure Apps' on the sender's google ID. But from May 30, 2022, ​​Google no longer allows any less secure apps and there's no option to turn it on.

[davefes]

I use uMail on Gmail. All that needs changing is:

smtp = umail.SMTP('smtp.gmail.com', 587, username='mygmail.com', password='your 2 factor authentication')