Note: Proton Mail only offers auto-forwarding as a feature for paid accounts. If you have a paid subscription, you can set up auto-forwarding by following these steps:
- In your inbox, tap on Settings (gear icon on the top right).
- Under All settings > Proton Mail > click on Forward and Auto-reply > Forward emails > Click on Add forwarding rule.
- Select your Proton Mail address where you receive your credit card emails from the dropdown Forward from menu and enter your Gmail account as the Forward to email address. Click on Add Condition once you're done.
- Select an If condition from the dropdown menu, and select the is exactly condition from the dropdown menu.
- Mention the email addresses from which you receive your statement and transaction alerts and to auto-forward all relevant emails to your Fold linked Gmail account.
- Click on Save and you're all set!