Why is my email automatically marking certain emails as spam?

1. Check your spam folder for emails that may have been incorrectly marked as spam by your email provider
2. Add contacts/senders to the safe-senders list to avoid emails sent by them being marked as spam
3. Check if the email address is on an external blacklist and remove it if necessary
4. Check your email settings to increase the accuracy of the spam filter
5. Ensure the email security settings on your account are up to date
6. Configure security settings to prevent malicious and fraudulent emails from entering your inbox