What could the problem be if I do not receive notification for some submissions?

Hello, sometimes, I do not receive any notification for submitted forms. What could be the problem, and how can that be rectified? Thanks!

Thank you for reaching support,

Can you please check this guide in relation to the issue?https://www.jotform.com/help/364-why-am-i-not-receiving-email-notifications#:~:text=It%20could%20be%20due%20to,is%20on%20the%20bounce%20list..

Let us know if you have any further questions.

Best.

Thank you!