To set up BCC to Salesforce, follow these steps:

1. In Gmail, click the Yesware drop-down menu in the top-left corner and select Preferences.
2. Go to the Integrations section.
3. Turn "BCC to CRM" to ON.
4. Enter your unique BCC address.
5. Click Save & Reload.
6. Ensure the "CRM" button is checked in your Gmail compose window.

Please note:

You will need to repeat this process every time you add new recipients to an existing campaign. However, there is a workaround: by adding the BCC to the CRM email address when you first create the campaign, it will automatically be included in all future communications for that campaign.