Email Builder uses SendGrid to deliver your emails - increasing your overall delivery rate.
Email Builder tracks all email sent from Salesforce allowing you to better monitor delivery.
Email Builder can be configured to record all workflow emails as activity records in Salesforce.
Email Builder can be configured to securely store all of your emails - whether for regulatory purposes or simply to review email content.
With Email Builder, you can even resend emails that were previously sent - in the event of an issue or simply because you need to send the email to a new recipient.
Email Builder allows you to override default Salesforce email templates - such as task notification emails.