Catches error while sending notifications

app/controllers/meeting_contents_controller.rb

@@ -85,8 +85,18 @@ class MeetingContentsController < ApplicationController
     unless @content.new_record?
       recipients = @content.meeting.participants.collect(&:mail).reject { |r| r == @content.meeting.author.mail }
       recipients << @content.meeting.author.mail unless @content.meeting.author.preference[:no_self_notified]
+      recipients_with_errors = []
       recipients.each do |recipient|
+        begin
           MeetingMailer.content_for_review(@content, @content_type, recipient).deliver
+        rescue
+          recipients_with_errors << recipient
+        end
+      end
+      if recipients_with_errors == []
+        flash[:notice] = l(:notice_successful_notification)
+      else
+        flash[:notice] = l(:notice_notification_with_errors) + recipients_with_errors.join(", ")
       end
     end
     redirect_back_or_default controller: '/meetings', action: 'show', id: @meeting

config/locales/de.yml

@@ -64,6 +64,7 @@ de:
   label_version: "Version"
 
   notice_successful_notification: "Benachrichtigung erfolgreich gesendet"
+  notice_notification_with_errors: "Benachrichtigung gesendet. Folgende Empfänger konnten nicht benachrichtigt werden: "
   notice_timezone_missing: Keine Zeitzone eingestellt und daher %{zone} angenommen. Um Ihre Zeitzone einzustellen, klicken Sie bitte hier.
 
   permission_create_meetings: "Besprechungen erstellen"

config/locales/en.yml

@@ -64,6 +64,7 @@ en:
   label_version: "Version"
 
   notice_successful_notification: "Notification sent successfully"
+  notice_notification_with_errors: "Notification sent. The following recipients could not be notified: "
   notice_timezone_missing: No time zone is set and %{zone} is assumed. To choose your time zone, please click here.
 
   permission_create_meetings: "Create meetings"

spec/controllers/meeting_contents_controller_spec.rb

@@ -86,7 +86,7 @@ describe MeetingContentsController do
         it 'produces a flash message containing the mail addresses raising the error' do
           put 'notify', meeting_id: meeting.id
           meeting.participants.each do |participant|
-            expect(flash[:error]).to include(participant.name)
+            expect(flash[:notice]).to include(participant.mail)
           end
         end
       end