- Check email spam or junk folders
-Go to your email provider’s webpage or mail app and check any email spam or junk folders for missing emails. - Check email filters
-Maybe check any email filters or blocks that you have set up or that your email provider might have set up. - Update email settings
-Verify that email settings are up to date and reflect the correct email address. - Check sender's email for delivery failures
-The email sender may have received a delivery failure notification. - Identify any new email policies
-Review any new email policies or privacy settings that may have been put in place. - Contact the email sender
-Contact the email sender to ask if the email was sent and check if they are having any delivery or related issues.