Spam emails are unsolicited bulk emails that can be a significant distraction and potential danger. To prevent spam emails, it's essential to mark them as spam, never publish your email address online, and don't open suspicious emails. Additionally, using filters or rules in email providers like Gmail, Outlook, or Mail for Mac can help automatically delete unwanted emails. For companies you know you won't want to hear from, temporary email services like 10 Minute Mail, Mailinator, Inboxes, or Guerrilla Mail can provide a solution. By being cautious when sharing your contact information online and automating your inbox with tools like Zapier, you can minimize distractions caused by spam emails.