SASL authentication failed

I purchased the sysadmin module and after setting it up for my SMTP to be gmail, i keep getting this error in the debug:
delivery temporarily suspended: SASL authentication failed

now when i go back to even the default email, it will not work as well, showing this error:
Network is unreachable

i can provide more logs…
i am not sure what happened since installing the module that would be causing this…