Overview
Instead of subscribing to all newsletters manually again, you can set up auto-forwarding and send a copy of selected newsletters from your main inbox to your summate inbox, automatically. The overall process typically takes about 5 minutes of time, and generally requires two things:- add your
@inbox.summate.io
email to your approved forwarding addresses - setup filters to forward newsletters to your
@inbox.summate.io
email
Security First
- Universal Compatibility - Works with every email provider (Gmail, Outlook, iCloud, ProtonMail, corporate emails, etc.) without special integrations
- Privacy by Design - We only see emails you explicitly choose to forward. Your personal emails, bank statements, and sensitive communications stay completely private. We never have access to your full inbox.
Step-by-step guide for Gmail
Go to Gmail Settings


Navigate to Forwarding and POP/IMAP

Add a new Forwarding Address

Enter your Summate inbox address
username@inbox.summate.io
You should have received this during onboarding. If you haven’t, visit your inbox page to find it.
Authorize your request
Find the verification email
- Navigate to your Summate inbox
- Look for a new sender in the pending section
- Click on the Gmail verification email

Complete verification
https://mail-settings.google.com/mail/...
) and paste it into your browser.
Set up forwarding filters


- Check “Forward it to” and select your Summate inbox
- Optionally check “Mark as read” to keep your inbox clean
- Click “Create filter”

Step-by-step guide for Outlook/Microsoft 365
Common Error Message
If you see this error when trying to forward emails:Enabling External Forwarding (Administrator Required)
Access Microsoft 365 Defender
- Email & collaboration → Policies & rules → Threat policies → Anti-spam policies

Edit Anti-spam Outbound Policy

Enable Forwarding Rules
- Find the Forwarding Rules section
- Locate the Automatic Forwarding Rules dropdown
- Select On - Forwarding is enabled
- Click Save at the bottom

Setting Up Forwarding Rules in Outlook
Once external forwarding is enabled, follow these steps to create rules that forward newsletters:Open Rules Settings
- Go to File → Manage Rules & Alerts
- Click New Rule
- Click the Settings gear icon
- Select View all Outlook settings
- Go to Mail → Rules
- Click Add new rule
Create a Forwarding Rule
- Name your rule (e.g., “Forward Newsletters to Summate”)
- Add conditions to identify newsletters:
- From: Specific sender or domain
- Subject contains: Newsletter keywords
- Body contains: “unsubscribe” (use cautiously)
Set the Forward Action
- Add an action: Forward to
- Enter your Summate inbox:
username@inbox.summate.io
- Optionally add more actions:
- Mark as read
- Move to folder
- Apply category
Review and Enable
- Review your rule settings
- Ensure “Turn on this rule” is checked
- Click Save or OK
- Test with a sample newsletter
Step-by-step guide for iCloud Mail
Access iCloud Mail Settings
- Go to icloud.com/mail
- Sign in to your Apple Account
- Click the Settings button at the top of the Mailboxes list
- Choose Settings
Configure Mail Forwarding
- Select Mail Forwarding in the sidebar
- Check the “Forward my email to” checkbox
- Enter your Summate inbox address:
username@inbox.summate.io
Optional Settings
- To save iCloud storage, check “Delete messages after forwarding”
- Otherwise, copies of forwarded emails will be stored in iCloud
- You can set up rules to forward only certain emails
- Each rule can only use one forwarding address
- See Set up rules to filter email for details
- Check our Recommended Filter Settings for newsletter filtering ideas
To Stop Forwarding
- Go to icloud.com/mail and sign in
- Access Settings → Mail Forwarding
- Uncheck the “Forward my email to” checkbox
Step-by-step guide for Yahoo Mail
Requirements
- Yahoo Mail Plus or Access + Forwarding subscription (not available on free accounts)
- Verification of forwarding address
Access Forwarding Settings
- Open Yahoo Mail in your browser
- Click the Settings gear → More settings
- Navigate to Mailboxes
- Click on your primary email account
Enable Auto-Forwarding
- Find the Auto-forwarding section
- Enter your Summate inbox:
username@inbox.summate.io
- Click Verify
- Check your Summate inbox for verification email
- Complete verification and Save
Step-by-step guide for ProtonMail
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.Access Forwarding Settings
- Sign in at mail.proton.me
- Click Settings (gear icon) → All settings
- Navigate to Proton Mail → Auto-reply and forward
- Click Forward emails → Add forwarding rule
Create Selective Forwarding Rule
- Forward from: Select your Proton address
- Forward to: Enter
username@inbox.summate.io
- Click Add condition for selective forwarding:
- From contains: newsletter domains
- Subject contains: “newsletter”, “digest”, “weekly”
- Add multiple conditions for accuracy
- Click Send confirmation email
Complete Verification
- Check your Summate inbox for the verification email
- Click Accept forwarding in the email
- Your rule is now active
Step-by-step guide for Fastmail
Create a Forwarding Rule
- Go to Settings → Rules (or Filters & Rules)
- Click Create rule
- Add conditions to identify newsletters:
- From contains common newsletter domains
- Subject contains newsletter keywords
- List-Id header exists (most accurate)
Set Forward Action
- Send a copy to: Enter
username@inbox.summate.io
- Preserves original sender (recommended)
- Better for DMARC compliance
- Forward: Re-sends from your address
- Replies come back to you
Advanced Filtering (Optional)
Step-by-step guide for HEY
How HEY Handles Newsletters
HEY automatically routes newsletters to The Feed (a separate view), but there’s no way to auto-forward only Feed items to external addresses.Enable Global Forwarding (If Needed)
- Go to app.hey.com/accounts
- Select your account
- Navigate to Forwarding & Sending
- Add
username@inbox.summate.io
as forwarding address - Complete verification
Alternative Approach
- Forward everything from HEY to another provider (Gmail/Fastmail)
- Set up selective rules in that provider
- Forward only newsletters to Summate from there
Recommended Filter Settings
Setting up the right filters ensures only newsletters reach your Summate inbox, not your personal emails. Here are proven filtering strategies:Platform-Specific Filters
- Substack:
from:substack.com
- Beehiiv:
from:beehiiv.com
- ConvertKit:
from:convertkit.com
- Ghost:
from:ghost.io
- Mailchimp:
from:mailchimp.com
Smart Keyword Filters
from:newsletter AND has:unsubscribe
subject:"weekly" OR subject:"daily" OR subject:"digest"
from:noreply AND has:unsubscribe
Universal “Unsubscribe” Filter
- Order confirmations
- Service notifications
- Marketing emails
- Account updates
Tips for Better Filtering
- Start specific - Begin with known newsletter senders
- Test first - Apply filters to existing emails before enabling forwarding
- Refine regularly - Review what’s being forwarded weekly
- Use labels - Mark forwarded emails in your main inbox for easy tracking