I think there is a bug in the plugin. I keep getting undelivered wordpress password change emails for users who have signed up using oneall social login, they all seem to be addressed to generated email addresses like "email@example.com". The email addresses for the users have not actually been changed however.
I don't have the generate placeholder email setting switched on in the plugin settings, but this seems to be what is happening. I've no idea why it would be triggering wordpress to send password change mails either! Can anyone help with this?