One Workspace Per Client: Why Agencies Separate Domains and Tenants
Agencies that run many client brands learn a hard lesson: shared Google tenants and shared sending reputation turn one client’s mistake into everyone’s outage.
What goes wrong in a shared tenant
- Admin permissions bleed across brands.
- Billing and offboarding become messy.
- A spam complaint on Client A can stain domains tied to the same patterns.
- Data residency and access reviews get harder for enterprise clients.
The isolation model that scales
- One Google Workspace per client brand (or per legal entity when required).
- Dedicated domain(s) authenticated only for that workspace.
- Separate billing so pausing a client does not touch others.
- Clear offboarding — suspend users, transfer docs, then close.
When a subdomain is enough
Internal tools sometimes use mail.client.com under the same org. For external client brands, prefer a distinct domain and tenant. Subdomains still share organizational risk if mismanaged.
How MailJuke fits
MailJuke is built for spinning up domains and Workspace seats without spreadsheet chaos — so agencies can keep each brand isolated while still moving fast on onboarding.