If you are unable to receive emails from Zoom, including notifications and activation emails, you can use the following information to troubleshoot. If someone has not received their email, the host can easily access that email, either to copy the information and send it with another service.
 
 

Can’t Receive Zoom Confirmation Email? – Systran Box

 
If you have not joined on your computer, simply press # again when prompted to enter in your participant ID. Page 3. Join using desktop app. 1. Open the Zoom. If someone has not received their email, the host can easily access that email, either to copy the information and send it with another service. Check the email you used. It may be a no-brainer but the first thing that you need to do is make that the email you used in signing up was.