Inventory before choosing migration tooling
Mailbox sizes, aliases, shared mailboxes, groups, domains, applications, file shares, permissions and device states determine the migration plan.
Design transition states
Tenant-to-tenant and on-premises migrations can require coexistence, staged DNS changes and controlled authentication changes with documented rollback points.
Include security in the target design
MFA, Conditional Access, Defender, Intune and mail-authentication controls should be part of the migration rather than an afterthought.
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AL Group can assess, design, implement and operate the underlying technology rather than stopping at advice.
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