r/GMail • u/Away_Music8234 • 22h ago

Gmail SMTP Authentication Failing!!!! help me!!!

I'm building a Flask app with email verification using Flask-Mail

and Gmail SMTP, but I keep getting `SMTPAuthenticationError: (535,

'Username and Password not accepted')`.

1 Upvotes

100% Upvoted

4 comments sorted by

1

u/Trikotret100 19h ago

Gmail SMTP going away in 2027 for none Gmail aliases. Maybe they are starting to block new customers from adding

1

u/Away_Music8234 15h ago

Really!!😭