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ProtonMail supports selective forwarding with custom rules on paid plans only. Free accounts cannot use auto-forwarding.

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Security Note

When forwarding from ProtonMail to non-Proton addresses (like Summate), emails will not be end-to-end encrypted. Only the emails matching your forwarding rules are affected.

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Setup Instructions

1

Access Forwarding Settings

  1. Sign in at mail.proton.me
  2. Click Settings (gear icon) → All settings
  3. Navigate to Proton Mail → Auto-reply and forward
  4. Click Forward emails → Add forwarding rule
2

Create Selective Forwarding Rule

  1. Forward from: Select your Proton address
  2. Forward to: Enter username@inbox.summate.io
  3. Click Add condition for selective forwarding:
    • From contains: newsletter domains
    • Subject contains: “newsletter”, “digest”, “weekly”
    • Add multiple conditions for accuracy
  4. Click Send confirmation email
3

Complete Verification

  1. Check your Summate inbox for the verification email
  2. Click Accept forwarding in the email
  3. Your rule is now active
Manage rules anytime from Auto-reply and forward → Forward emails
For advanced filtering, use ProtonMail’s Sieve filters (Settings → Filters → Add sieve filter) for header-level matching and complex logic.

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Next Steps

Filter Tips

Learn smart filtering strategies to forward only newsletters

Back to Overview

Return to the main auto-forwarding guide