adjust view only

app/controllers/send_submission_email_controller.rb

@@ -16,18 +16,16 @@ class SendSubmissionEmailController < ApplicationController
       @submitter =
         Submitter.completed.where(submission: template.submissions).find_by(email: params[:email].to_s.downcase)
     elsif params[:submission_slug]
-      submission = Submission.find_by(slug: params[:submission_slug])
+      submission = Submission.find_by!(slug: params[:submission_slug])
 
-      if submission
-        @submitter = Submitter.completed.find_by(submission: submission, email: params[:email].to_s.downcase)
-      end
+      @submitter = submission.submitters.order(:completed_at).find_by(email: params[:email].to_s.downcase)
 
       return redirect_to submissions_preview_completed_path(params[:submission_slug], status: :error) unless @submitter
     else
-      @submitter = Submitter.completed.find_by!(slug: params[:submitter_slug])
+      @submitter = Submitter.find_by!(slug: params[:submitter_slug])
     end
 
-    if @submitter
+    if @submitter && completed_submitter?(@submitter)
       RateLimit.call("send-email-#{@submitter.id}", limit: 2, ttl: 5.minutes)
 
       SubmitterMailer.documents_copy_email(@submitter, sig: true).deliver_later! if can_send?(@submitter)
@@ -41,6 +39,10 @@ class SendSubmissionEmailController < ApplicationController
 
   private
 
+  def completed_submitter?(submitter)
+    submitter.completed_at? || (submitter.viewer? && submitter.submission.completed_at?)
+  end
+
   def can_send?(submitter)
     return false if submitter.account.archived_at?
     return false if EmailEvent.exists?(tag: :submitter_documents_copy, email: submitter.email, emailable: submitter,