Disable Emails v1.8.1 has just been released. It fixes a fatal exception when an email address was invalid.

Disable Emails v1.8.0 has just been released. With this release, the mock PHPMailer object now records recipient addresses for developers to inspect.

Disable Emails v1.6.0 has just been released. This release requires minimum PHP 5.6 (recommend 7.3 or greater); supports running as a must-use plugin; adds a WordPress admin indicator when active; fixes a couple of bugs.