There are easier ways to do this for sure, but...
I have the Mailchimp Subscribe plugin installed to build our email list etc... and it works perfectly!
However, we are now building a "Coming Soon" page with the site turned off to the public while we build out the site.
Is it possible to accept a certain action while the system is offline so that the POST request is accepted and doesnt return a 503 error?
Again, this is possible through using just a Mailchimp form itself but I'm interested to see if this sort of thing is possible if I ever needed this sort of control in the future.