Zodor

Email All Users is a plugin that creates a widget that allows you to send mass email to all registered users in your wordpress site. 
You configure the widget with a title and mailto-link-title. 
The widget will then create a mailto:link that will include all users that is active. 
If you have the plugin “Email Users” installed it will only include users that has approved mass email in the settings.

Email All Users

Email All Users is a plugin that allows you to send mass email to all registered users in your wordpress site.

Augusto

Eduardo Pittol

Contact Form 7 Group Mail allows you to send messages to multiple users, according to their groups. With this plugin you can choose who (admins, editors, authors, contributors, subscribers and custom roles) are going to receive the e-mails.
The list of recipients is automatically updated, so it’s not needed to change the contact form every time a user is added or removed.
Important: it is an extension for Contact Form 7 plugin.

Contact Form 7 Group Mail

Allows you to send Contact Form 7 messages to any group (admins, editors, authors, contributor, subscribers and custom roles).

Email All Users vs Contact Form 7 Group Mail