We don't.
First, we understand that users will be reaching out to each other with a personalized message, so privacy is important.
Second, there is no reason for us to do so. We don't want to sell personally identifiable information like some other companies do. We have a different way to monetize the platform.
Third, technically, our SMTP provider SendGrid (which takes care of email delivery) doesn't allow retrieving the content of an email that was sent. Here's a response from their support team:

Here's what we see on SendGrid:

Fourth, when it comes to the website side, we don’t have email logs enabled.