Facebook private group and sending emails

Hey,

I have a question about Facebook private group and collecting emails.

I have a group where I want to start collecting emails.

So it would go something like this: [Joins FB group] - [answers few questions + email] - Start of email marketing?

Is there a email marketing software where I can automatically collect emails from Facebook group and then start a campaign?

Thanks!

You can only collect public emails .

Anything private is private full stop .

You can only collect what has been set from the user as allowed to be seen public .