Using SMTP for emailing in WordPress Multisite
To enable SMTP emailing (use SMTP instead of mail()) in a WordPress Multisite, you can do this: 1. Install this plugin in network admin dashboard: WP MAIL SMTP ( https://wordpress.org/plugins/wp-mail-smtp/ ) 2. Add these settings to wp-config.php : define('WPMS_ON', true); define('WPMS_MAIL_FROM', 'myemail@mydomain.com'); define('WPMS_MAIL_FROM_NAME', 'My WordPress Multisite'); define('WPMS_MAILER', 'smtp'); // Possible values 'smtp', 'mail', or 'sendmail' define('WPMS_SET_RETURN_PATH', 'false'); // Sets $phpmailer->Sender if true define('WPMS_SMTP_HOST', 'smtp.gmail.com'); // The SMTP mail host define('WPMS_SMTP_PORT', 587); // The SMTP server port number define('WPMS_SSL', 'tls'); // Possible values '', 'ssl', 'tls' - note TLS is not STARTTLS define('WPMS_SMTP_AUTH', true); // True turns on SMTP ...