Jenkins SMTP Email configuration fails verification
Please check the settings in your google account.
I set "Access for less secure apps" to allowed when I got the same error.
After that I was able to send mails with the settings you specified.
Update mailer plugin to 1.1 in Jenkins.Update jenkins to latest version.Restart. Works fine then.Updating jenkins is optional.
In my case, I had to perform an extra step (see point 2 below) to make it work:
- Allow less secure app access: clickhttps://www.google.com/settings/security/lesssecureapps and selectTurn on
- Unlock captcha: clickhttps://accounts.google.com/DisplayUnlockCaptcha and select continue