Odnoklassniki, Vkontakte, Twitter, etc. Is it possible to get the user's email?

Question

In contact with

Information on the Internet is contradictory.
Need an up to date answer.
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VKontakte seems to have opened access to email
habrahabr.ru/post/168295/#comment_7576393
vk.com/dev/permissions - there is permission for email and it is requested during authorization, and here https ://vk.com/dev/users.get there is no email field and its "manual" addition does not help
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Odnoklassniki
apiok.ru/wiki/pages/viewpage.action?pageId =46137373
users.getCurrentUser - not in the list of email fields
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twitter
https://dev.twitter.com/docs/api/1.1/get/account/v...
no email field
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google + yes
there is an email
https://developers.google.com/+/api/latest/people#...
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My world - yes
api.mail.ru/docs/reference/rest /users.getInfo
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facebook - yes

Answer 1

VK answered that yes, I checked it works, there another method returns the email
"e-mail (if the appropriate scope is requested, and the address is linked to the user's page) is transmitted directly when authorization is completed, no additional methods need to be called to receive it.
In vk.com /dev/auth_sites details how this happens, please read this page carefully again"

Answer 2

In Odnoklassniki you can get an email, you just need to write to api-support what it is for and the application id.