MS POST case studies
MS POST · Put your knowledge to work in context.
The Microsoft 365 Certified: Messaging Administrator Associate credential is aimed at IT professionals who run email for an organization on Exchange Online, Exchange Server, or a hybrid of both. It signals that you can keep mail flowing, keep it secure, and keep recipients working across an environment that mixes cloud and on-premises components. The exam spans seven areas: organizational settings and resources, transport architecture, hybrid configuration and migration, security, mail flow, recipients and mailboxes, and recipient access and authentication. Expect scenario-driven questions rather than trivia. The MS POST case studies are 5 cases and about 3,624 words.
1Coexistence Mail Flow During a Staged Hybrid Migration
Contoso runs Exchange 2016 CU20 in one AD forest with 4,200 mailboxes split between Amsterdam and Singapore. A nine-month staged migration to Exchange Online begins with a 600-mailbox pilot.
769 words, about 4 min2Blocking Legacy Authentication Without Breaking Clinical Devices
Northwind Health has 2,800 mailboxes in a hybrid deployment. Conditional Access already requires MFA for 25 administrators, but all other users sign in with only a password.
698 words, about 3 min3Shared Namespace After an Acquisition With No Trust
Fabrikam acquires Northwind, which runs Exchange 2019 in a separate AD forest with no trust. Northwind has 900 mailboxes and a heavily used free/busy culture.
741 words, about 4 min4GAL Segmentation and Room Booking Across Five Brands
A holding company operates five brands with 12,000 mailboxes in Exchange Online. All brands share one tenant and one default GAL, and an internal audit found that Brand A staff can see Brand B's executives and distribution lists.
696 words, about 3 min5Retiring AD FS While Keeping Outlook Connected
Tailspin Toys has 6,000 mailboxes in a hybrid deployment with Exchange 2016 on-premises and Exchange Online. Authentication uses AD FS 2016 with WAP servers; the AD FS farm certificate and the WAP certificate expire in 45 days.
720 words, about 4 min