BuzzStream serves as an "email client" to your email account. By connecting your email account to BuzzStream, you enable two of buzzstream's tools: Automatic Email Tracking and the Outreach Module.
Automatic Email Tracking:
BuzzStream automatically keeps track of all emails sent between you and the contacts you have in BuzzStream. BuzzStream does this by monitoring your inbox and your 'sent items' folder for emails with your contact's email address in the To or From fields. When BuzzStream finds an email that matches, it adds that email to your contact's history. To learn more about Automatic Email Tracking see "What is Automatic Email Tracking and how does it work?"
The Outreach Module:
BuzzStream's Outreach Module is a tool specifically designed to help you conduct personalized, relationship-based outreach...without sacrificing scale.