Your criteria is not possible in Discord. Getting personal data (Users email address) from a Discord user is not possible what so ever. Discord would never let any user have access to private data in their API.
Fortunately, a much easier way of creating this is to check if the account was recently made. Using member.created_at.strftime("%a, %#d %B %Y, %I:%M %p UTC"))
will simply get the time and date the joined user created their account at. I'll leave it up to you when you want to set a threshold of how early a user can join.
You can also check when the user joined a server with, also remember to define the member as the Discord user who joined. I am leaving the rest for you to complete but hoping this helps get you farther in your progress. Next time, remember to include your trialed attempt and please don't always rely on the community to give you a whole code of answers.
member.joined_at.strftime("%a, %#d %B %Y, %I:%M %p UTC"))
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