When you sign up for an email address, it is best to only use your first initial and last name or your first name and last initial. A great way to avoid sending out everyone's address, is to use Bcc. All email providers have this option. This will also work with a new emailing. Not only will this respect the privacy of others, it will keep them from having to scroll forever, just to get to the actual message.
Hackers usually send viruses through other people's address books.
If you are not sure how to do Bcc, please contact me and I will try to answer your questions. Peanuts are one of the ingredients of dynamite. There are 293 ways to make change for a dollar. A shark is the only fish that can blink with both eyes. There are more chickens than people in the world.