How to configure SMTP authentication in MultipleWordpress site to send emails?

To use MultipleWordpress to send email, you need install  the smtp plugin from your wordpress site first. For example install Easy WP SMTP,
Please follow the steps below to install it.
1. Login to your wordpress site -->My sites-->Network Admin->plugins panel.

2. Search for WP-Mail-SMTP and install it

3. Active it


Now you can use it to set SMTP authentication.
1. Go to My Sites->My Wordpress->Dashboard panel.


2. Click Settings->Email for the 'Advanced Email Options'

Note: username should be same as From Email.