ActiveCampaign Mail Lab
Follow a message from trigger to inbox.
Open the lab
Enter the lab administrator token provided with the deployment.
Sandbox connection
Create a format test
Generate a preview, inspect it, then choose Send test. Every message is labeled for removal.
Experiment mapping and webhook
The sandbox automation adds a dedicated signal tag. The receiver requires a signed event. The signing key is configured server-to-server and is never shown here.
Bounded automatic test
Loading controls…One signed event and one fresh sandbox enrollment per arm. Ten-minute expiry. Two automatic submission slots in total, never reset by restart. Only the fixed lab mailbox can receive mail.
Prepare the signal with the scoped operator helper while AC is inactive. Arm here, wait for “armed”, then enroll the single test contact in AC. Disarm cancels pending work; it cannot recall a submission already in flight.