pro

did reply to your mailing, but not sure if you got it

Very smart feature
I would not bother that one, you ll waste your time, I would rather use your plugin page as backling to your site doc or support pages and why not creating an upsell…

Google PSI and GTMetrix report.

Also check your domain SPF and DKIM (including mailchimp), you r going straight to spam
https://mxtoolbox.com/SuperTool.aspx?action=spf%3ajosemortellaro.com&run=toolpage