I am interested in providing my users with custom emails account, and would like to whitelist every one of them in Google Schema Markup.
As for now, I have found the next form: https://docs.google.com/forms/d/e/1FAIpQLSfT5F1VJXtBjGw2mLxY2aX557ctPTsCrJpURiKJjYeVrugHBQ/viewform?pli=1
Using this form, you can manually submit a request to add your email address (after doing all the preparations and steps Google asks for) to the Google Schema Markup whitelist.
My question is, since I am interested in opening email accounts automatically for my users and would like to also whitelist them automatically to Google Schema Markup, if there's a way to do so, or do I have to / have my users to complete all the steps and submit the form every time manually?
The form I linked has the next question:
From what email address are these emails sent?
Maybe there's an option to use a wildcard or to whitelist the whole domain the emails will be based on? (I am planning to use a single domain for all the email accounts)
The emails my users will send are using the same pattern and will have a very similar content (mostly receipts and invoices).
So far I see that there is indeed no way of submitting a whole IP / emails in bulk to Google Schema Markup.
I have filed a feature request as @noogui suggested. Hopefully they'll do something about it in the future.