1. Check your email filters and adjust the settings to only allow emails from trusted sources.

2. See if your email provider offers a feature to unsubscribe from unwanted emails.

3. Disable email forwarding for each email account you have to ensure no emails are sent automatically to other addresses.

4. Check the address of the sender to ensure the email is from a legitimate source.

5. Block unwanted messages from the sender by accessing spam filters in your email provider’s settings.