Extracting Emails from Facebook Groups in 2020

Does anyone have a valid method for extracting emails from Facebook Groups? There are tons of old threads on BHW but I am looking for a solution that is working in 2020. I also need to extract 10,000+ emails per day. For example, "botguruz" is a working provider but their limit for extraction...

21 Jan 2020 ... I also need to extract 10,000+ emails per day. For example, "botguruz" is a working provider but their limit for extraction is 1,500 emails per day ...

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