- Are a platform sender and need to separate email sending for different customers
- Need to create testing environments (we call these Sandbox Channels)
- Want to separate different types of emails you’re sending (for example to view aggregated stats)
- Or really any use cases that make you want to create dedicated sending environments.
Creating a Channel
When creating a new Channel, you’ll be asked to choose a name and a Channel type:- Live — for production sending
- Sandbox — for testing
Deliverability alerts
Helo monitors deliverability for each of your Channels. When bounce rates or spam complaint rates exceed safe thresholds, Helo generates an alert. Alerts have two severity levels: Bounce rate alerts:
Spam rate alerts:
These thresholds reflect industry standards set by major inbox providers (Gmail, Yahoo) for acceptable sending behavior. Consistently exceeding them risks inbox placement, domain/IP reputation damage, and may trigger account or Channel suspension.