First, be sure to check your Spam and Trash boxes. If submissions aren’t there, check if you’ve got the proper form configuration. Here are some tips for having your submission emails behave like regular emails.
In the form builder, go to Emails, and collapse the Show From and Reply-to options section.
Now, select the following variables from the dropdown lists below: your submitter’s name for From name, firstname.lastname@example.org for From email, and your submitter’s email address for Reply to email.
Also, create a whitelist in your email settings. This way, you’ll always find your form submissions in your Inbox.