Documentation · Plans and limitsCapacity is explicit before you need it.
The account plan defines domains, mailboxes, counted messages, and administrative seats. The API enforces the same limits everywhere.
7 min readUpdated Jul 22, 2026v1.0
Choose during signup
Free activates directly. Paid selections are recorded and completed through assisted activation during the pilot.
Understand usage
Each accepted inbound or outbound message counts once during the account billing period.
Reach a limit safely
Existing data remains available. Only creation or usage beyond the constrained entitlement is blocked.
