The miscellaneous section of the Subscribe2 plugin allows you to enter domains to bar for public subscriptions. You can add,
- Plugin Site link- https://wordpress.org/plugins/example/
- Plugin Forum link- http://wordpress.org/support/plugin/example
- Plugin Blog link- http://example.wordpress.com/
Navigate to Subscribe2-> Settings-> Miscellaneous. There you will find a text box to enter domain names.
That’s it for miscellaneous settings.