If you use PepiPost email service then use this documentation to set up Bounce handling with FluentCRM.
First copy the Webhook URL at FluentCRM -> Settings -> SMTP/Email Sending Service Settings and Select Pepipost from the dropdown
Login to your PepiPost account and then navigate to Settings > Webhook -> Custom API then paste the webhook URL to the following inputs and click “Add Webhook” Button
- Spam Reports
If you set up these two webhook correctly, so whenever an email mark as a complaint or Detected as a permanent Failure, Then FluentCRM will change the contact status accordingly.