I had known about this service for a long time, but I only started using it recently because there wasn't much need before. Recently, I was hit by a wave of spam, and I had to take action. Manually deleting their messages was quite difficult since I wasn't used to it. With the help of Spam Guard, I cleaned up my inbox, set up protection, and now I have order and peace. There's no more advertising. The service works great, and, as experience shows, it is truly necessary.