Don't create certmanager CRs by default (to be deprecated)

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

Author: funkypenguin

charts/docker-mailserver/values.yaml

@@ -53,7 +53,10 @@ ssl:
     kind: ClusterIssuer
   dnsname: example.com
   dns01provider: cloudflare
-  useExisting: false
+
+  # Set this to false to let the chart try to assemble a CR for you. This feature will be deprecated soon, and users will 
+  # need to manage cert-manager outside of this chart (the dependencies involved make it fragile)
+  useExisting: true 
   existingName: name-of-existing-secret
 
 ## Create the necessary PodSecurityPolicies (PSPs) for docker-mailserver, haproxy, and rainloop to work