Help!!! Rainloop Authentication Failed

I have been trying to get my mail working and it has always been one issue or the other, I updated cyberpanel and the IMAP started connecting well, but SMTP still gives error so I decided to use Aws smtp server for sending mails.

I have been trying to login but it keeps saying authentication failed. I have gone through different discussion on here but nothing seems to work. I am suspecting it has something to do with cyberpanel as I tried to login from my Gmail App it still gives me authentication error.

Any suggestions please.