Email is a useful tool but it can also be dangerous. The first thing is be careful what email you open. If you do not recognize the sender and it contains links I would suggest deleting the email. Also do not enable auto preview, this can trigger those links and possibly infect your computer. If you get an email from your bank or some other online service, never click the link to logon. That is an easy way for a cracker or hacker to obtain your information. Remember the saying “Trust but verify” — it applies here.