Often, this is caused by a typing error in your recipient's email. Please double check your recipient's email address.
If you know that your recipient's email was correctly entered, the email may have been marked as spam by your recipient’s email server. If this is the case, the email might be in their spam or junk folder. Advise them to add PNP to their authorized senders using the instructions HERE.
As the video message creator, you should have received an email confirming the creation of your video with a link to the file. Should either of these solutions fail, you can also forward this email to the recipient directly.