Email form submission gets blocked on WPEngine due to login protection

I recently move a site I am using this on over to WPEngine and the form stopped working. However I knew it was a WPE specific issue because it was still working on non WPE sites. The form would return an empty response whenever it started handling the POST request. Digging into this further and after discussing this with WPEngine support, the issue came down to their login protection. This I am assuming is due to the piggy backing of the login form to handle the email submissions.

For the plugin to work on WPE the login protection needs to be disabled, which is a very bad idea. We all know how often WordPress sites are attacked by brute force and other methods to login to your site. For any sort of important site turning off security for a plugin as non mission critical as slack invites (yes I really do want auto slack invites too, but “mission critical” ? probably not) is probably not a great solution.

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