Dennis @ PerfectForms
The first step I would take to troubleshoot your problem is use the default (PerfectForms) email server. Send a couple of notifications via a form. We know that our email server and notification service are working properly. If you still do not receive your notifications, then you know it is a workflow issue. If you are setting up your own email (SMTP) server in PerfectForms, there are several things that can be stumbling blocks:
If you are using Google (and probably Yahoo), make sure to check the “Requires Authentication” box and include your username and password (from the email server). Use port 587 and check the “Requires SSL” box. Make sure your User and reply to boxes have valid addresses in them.