invitation email

Hello,

I would verify that the user impacted has followed the steps in this article to verify that they can receive emails from you:https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060106 

I hope this helps and please make sure to mark the solution as accepted if this information is what you needed.

Thank you,

Jake

This is likely an email domain reputation issue. You can try copying the invite and sending from your own CRM or email client. If you want to automate this there is a Zoom app, Salepager, that lets you send Zoom invites and ensure they are delivered.