handle 2fa email bounce

app/controllers/submit_form_email_2fas_controller.rb

@@ -35,6 +35,12 @@ class SubmitFormEmail2fasController < ApplicationController
 
     RateLimit.call("send-email-code-#{@submitter.id}", limit: 2, ttl: 45.seconds, enabled: true)
 
+    if Docuseal.multitenant? && Submitters.email_bounced_recently?(@submitter.email)
+      Rollbar.warning("Bounced OTP email for submitter: #{@submitter.id}") if defined?(Rollbar)
+
+      return redirect_to submit_form_path(@submitter.slug, status: :error), alert: I18n.t(:verification_email_bounced)
+    end
+
     SendSubmitterVerificationEmailJob.perform_async('submitter_id' => @submitter.id, 'locale' => I18n.locale.to_s)
 
     redir_params = params[:resend] ? { alert: I18n.t(:code_has_been_resent) } : {}