Disable and log all outbound emails

Disables all outbound emails. For use on development and staging sites. Must be set to run on front-end and back-end (everywhere). Optionally logs the email contents into the WooCommerce > Status > Logs area.

add_filter( 'wp_mail', function( $args ) {

	// Optionally Log To WooCommerce
	if( function_exists( 'wc_get_logger' ) ) {
		$logger = wc_get_logger();
		$logger->info( print_r( $args, true ), [ 'source' => 'wp_mail' ] );
	}

	// Disable The Email
	if( isset( $args['message'] ) ) {
		$args['message'] = '';
	}

	// Return
	return $args;

} );

Instructions for Disable and log all outbound emails

  1. Log into a staging or locally hosted clone of your site.
  2. Install and activate Code Snippets plugin.
  3. WP Admin > Snippets > Add New
  4. Copy and paste the code from the section above.
  5. Check to ensure formatting came over properly.
  6. Customize the code as desired.
  7. Add a meaningful title.
  8. Select whether to run on front-end or back-end (or both).
  9. Click “Save and Activate”.
  10. Test your site to ensure it works.
  11. Disable if any problems, or recover.
  12. Repeat for live environment.

Need help modifying Disable and log all outbound emails?

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License

All code snippets are licensed GPLv2 (or later) matching WordPress licensing.

Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Disclaimer of warranty
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