Can I run more than one newsletter from one install?
Yes. That is what channels are for. A channel is an isolated workspace: its own subscribers, broadcasts, sequences, segments, templates, and settings.
What isolation means
Subscribers belong to a channel. Someone on your product newsletter is not on your company announcements list unless you put them there. Unsubscribes, suppressions, and analytics are scoped the same way.
Channels can also carry their own sending domain and their own email servers, so two brands sending from one install do not share a From address or a sending reputation. The channels documentation covers creating one, switching between them, per-channel language, and deactivation.

Common shapes
- Multiple brands or products under one company
- Agencies running separate client audiences
- Separating marketing from transactional traffic so rate limits do not collide
- Staging versus production audiences

What is shared
The install itself: your license, the server, upgrades, and backups. Global suppressions apply across every channel, which is usually what you want for hard bounces and complaints, alongside per-channel suppressions for narrower cases.
Worth knowing before you commit
Channels isolate data, they do not isolate logins by client. If you need clients to sign in and see only their own channel, that is a different requirement. Check the roadmap and tell us if it is blocking you.
Agencies specifically may want to read the agency use case alongside this.
Email us if you are unsure how to split your audiences.