grosbouff

This plugin adds a checkbox in the post/page admin (for the admins and editors) to tell members (notification & email) that an important post has been published :
Just check the checbox at the bottom of a page/post when editing it. 
(You won’t be able to post a notification if the post/page is not published; password protected or if a notification has been sent before.) 
(If a notification has been sent before; the checkbox will be disabled. You can eventually re-enable it by deleting the meta key bp_admin_notifications_sent.)
Careful : I don’t have tested this plugin with a large amount of members. I suspect the mail function could not support it. Please tell me if you try !

BuddyPress Admin Notifications

This plugin adds a checkbox in the post/page admin (for the admins and editors) to tell members (notification & email) that an important post has  …

philippe

Adds an export emails page that allows you to export the email list of your subscribers and the email list of all the people who left comments. That way you can use a more sophisticated mailing list or autoresponder system to communicate with the people interested in your website.

Export emails

Adds an export emails page that allows you to export the email list of your subscribers and the email list of all the people who left comments.

BuddyPress Admin Notifications vs Export emails