Unable To Authentic With This Plugin Enabled

When this plugin is activated I am unable to send via SMTP. The error says that authentication must be enabled. Since it's not authenticating, it's not sending.

Disabling this plugin fixes the issue immediately.

If you need access to investigate this further please let me know. I'm not sure if the plugin is causing this, or the hosting setup - but I'll be happy to help out.

Thanks,

~ Corey