Last updated: 21 July 2026
How MSPs actually set up MailBroom for a client's Microsoft 365 tenant — a single SSO sign-in per client, not a unified dashboard across every client at once.
Per-tenant setup
An admin signs in with Microsoft SSO against the specific client tenant being onboarded — the same Entra ID login already used for that client's Microsoft 365.
Once that sign-in is done, any employee on the client's domain gets MailBroom access automatically — no per-user invites to send, no individual App Store installs to manage.
MailBroom for Business is licensed per organisation, so there's no single login that spans every client tenant an MSP manages — each client is set up on its own. In practice that means an MSP can roll it out to one client at a time rather than committing to every client at once.
An admin (the MSP, or the client's own IT contact) signs in with Microsoft SSO against that specific client's tenant — the same Entra ID login already used for Microsoft 365. Once that's done, every employee on the client's domain gets access automatically, with no per-user invites to send.
No — MailBroom for Business is licensed and configured per organisation (per Microsoft 365 tenant), so an MSP sets it up separately for each client tenant rather than through one unified, MSP-wide login across all of them. In practice this means it's introduced client by client, not as a single all-or-nothing rollout.
The setup itself is a single Microsoft SSO sign-in per tenant, typically actioned within a business day — see the trial page for the exact process. The ongoing time saved is the point: once set up, employees clear their own mailboxes rather than raising tickets an MSP technician has to work by hand.
Yes — since setup is per client tenant, an MSP can introduce it to one client at a time (e.g. starting with a client already hitting storage overage) rather than needing to commit across its whole client base upfront.
A 30-day IT assessment costs nothing and needs no card — just that client's own Microsoft 365 tenant.