Hello,
I’m trying to set up a new indico server on Amazon LightSail and using a gmail account as the smtp server.
The SMTP section of my indico.conf looks like this:
SMTP_SERVER = (‘smtp. gmail. com’, 587)
SMTP_USE_TLS = True
SMTP_LOGIN = ‘ @gmail. com’
SMTP_PASSWORD = ‘’
SUPPORT_EMAIL = ‘ @gmail. com’
PUBLIC_SUPPORT_EMAIL = ‘ @gmail. com’
NO_REPLY_EMAIL = ‘’
In the logs, I am getting error messages like this:
2023-05-01 03:57:02,881 WARNING 0000000000000000 - indico.emails Could
not send email “[Indico] Verify your email” (attempt 5/10); retry in 600s [(535, b’5.7.8 U
sername and Password not accepted. Learn more at\n5.7.8 https :// support. google. com/mail/?p
=BadCredentials d24-20020a170902b71800b001aaffe15f39sm96394pls.30 - gsmtp’)]
[I had to put spaces in the link above because the forum wouldn’t let me post a notice with more than 2 links.]
It seems that it is related to this May 30, 2022 announcement from Google disabling access for “Less Secure Clients”. Less secure apps & your Google Account - Google Account Help
Has anyone faced this issue before? Any help would be much appreciated.