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# How to prevent forwarding MailReach emails to your clients' or sales' inboxes [Gmail / Google Workspace]

**Summary**

* Use case 1: This guide helps cold outreach agencies avoid cluttering their clients' inboxes with warm up emails. 
* Use case 2: This guide helps also if you send campaigns for your sales team from secondary mailboxes and you want to avoid cluttering their main inboxes. 
* It's adapted if you use Gmail / Google Workspace.
* It should take you 3 minutes. 

# Step 1 : copy your filter code

1. In your MailReach account, in the Top Bar, click on **Email Warmer**
2. Find the mailbox you'd like to set up the filter and click on **Show**
3. Click on your **Filter Code** to copy it

![](https://storage.crisp.chat/users/helpdesk/website/-/4/b/1/9/4b195c5731d1d400/capture-decran-2026-06-17-a-10_1gdae4k.png =800xauto)

# Step 2 : if not done already, set up your client's or sales rep's email address as a Forwarding address in the Gmail account

1. Go in the Gmail account, then settings, then 'Forwarding and POP/IMAP'
2. Click on 'Add a forwarding address' : put here your client / sales rep email address so the emails received in this mailbox will be redirected to your client's / sales rep. 
3. Follow the steps with your client and make sure the forwarding address has been set up and confirmed.

# Step 3 : set up the Gmail filter that redirects the emails to your client / sales rep without the warm up emails.

1. In the Gmail settings, go to 'Filters and Blocked Addresses'
2. Click on 'Create a new filter'
3. In the 'Doesn't have' field, paste your warm up content code

![](https://storage.crisp.chat/users/helpdesk/website/4b195c5731d1d400/mydomainco-15_97guhf.png)

4. Click on 'Create filter'
5. Check 'Forward it to' and select the address of your client / sales rep.
6. Create filter. You're done.


Congrats 🎉 you've set up a filter in Gmail that says "Redirect all emails to my client / sales rep except the ones that contains the code XYZ".