Valid Unique Characters for Email Address of User Joining Meeting

I am currently working on ingesting a Zoom in-meeting chat log in order to archive the information for compliance purposes. One important thing that I noted while building my app is that, in order to accurately capture as many emails as possible, I need to know how “wide of a net” to cast. I was wondering if anyone knows which special characters are allowed for an email used to join a Zoom meeting.

“Internationalizing Domain Names in Applications (IDNA)” standards have changed over the years, and (as far as I understand at least) commas (",") are allowed in modern email addresses. That being said however, I know many applications do not support that character, as such I was wondering if commas are allowed in emails that are used to join Zoom meetings? If so, is there any filtering on characters in an email address used to join a Zoom meeting?


Which App Type (OAuth / Chatbot / JWT / Webhook)?

Which Endpoint/s?

Screenshots (If applicable)

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Hey @nathancronauer,

Thanks for reaching out about this—we’re working on confirming this for you and will follow up shortly.