There are a few ways to send a read confirmation, but the most common is probably through your email provider. Most providers will have an option in their settings to require a read confirmation or receipt for every email you send. This means that the recipient will not be able to read your email until they confirm that they've received it.
Another way to send a read confirmation is to use a third-party service like ReadNotify.com. This service allows you to track when your emails are opened, how many times they're opened, and even where they're opened from. It's a bit more expensive than using your email provider's built-in option, but it can be worth it if you need to track your emails closely.
At the end of the day, whether or not you choose to use a read confirmation is up to you. If you think it might be helpful in ensuring that your emails are being seen and read, give it a try!