Here’s how to access your BCC address in Salesforce:
- Find your user name at the upper right corner and select the drop down bar.
- Select “My Settings” or “Setup” from the drop down bar.

- Select the Email tab under “My Settings“
- Select the “My Email to Salesforce” tab
- You will see your email to Salesforce address highlighted

Note: Make sure your BCC address begins with emailtosalesforce@.
You can find details at Salesforce page here: https://help.salesforce.com/articleView?id=email_my_email_2_sfdc.htm&type=0 and here: https://blog.cloudhq.net/how-to-set-up-an-auto-bcc-on-all-outgoing-emails/#salesforce-bcc .