Welcome to the Cocoontech forum @brad64.
There are Cocoontech forum users with this board / OmniPro 2 panel that are using the email board with no issues and they will chime in.
Personally never purchased one and continue to utilize my alarm service company (which is closing it's doors) for notifications.
1 - I also utilize automation software connected to the panel.
2 - STunnel which I have used now for some 20 years which runs on the automation server.
Not sure what you mean by mentioning your update to .Net and its relation to the email notifier board. The board itself is very primitive and never really has been updated for current standards of email. The work arounds have been to utilize the Leviton email server or aux automation software or using STunnel. Here utilize GMail / MSN Mail for notifications via text or email.