Yet, Streak's snippet feature is far and away better than every similar snippet software I've ever used (and I've used the top 5 [in terms of largest user bases]). While snippets are but a footnote feature amongst Streak's suite of sophisticated features, my point is that snippets alone are worth the value of a Streak account.
Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use).
On your computer, open Gmail using the account you want to forward messages from. You can only forward messages for a single Gmail address, and not an email group or alias. In the top right, click Settings See all settings. Click the Forwarding and POP/IMAP tab. In the "Forwarding" section, click Add a forwarding address.