To send an email campaign to all of your clients follow these steps: 

1. Go to Marketing
2. Click on Email Newsletters
   
   
   
   
3. Click the New Email Campaign button in the top right corner
   
   
   
   
4. You can choose a theme for your campaign by searching for an image or upload your own
5. Enter a subject and your message
6. Use merge tags in your message to add a personal touch by adding your client's first and last name in the newsletter
7. Once you're ready, you can send a test email, save as draft, and send the newsletter