Below is a list of things you can try if your emails are appearing as blank:

1. Check if your email is fully composed with body text included, as any blank messages sent will be received with no content
2. Check your outbox for emails stuck in the sending process
3. Check if any security settings you are using may be preventing your emails from being sent
4. Confirm you are sending emails to the correct address
5. Check if the recipient has received your emails but that they have been inadvertently sent to their spam or junk folder